The Doctor and Clara are drafted in by a mysterious figure called the 'Architect' to rob the bank of Karabraxos - one of the most secure and dangerous monetary institutions in all the universe. Along with a cyborg /human hybrid named Psi (Broadchurch’s Jonathan Bailey) and a mutant shape-changer called Saibra (The Smoke's Pippa Bennett-Warne) the chase is on to secure something of great value. And just as vitally: to understand why all four of them have had their recent memories erased by their own volition!

Once again events are set in motion by a telephone call made to the Doctor's Tardis. Clara is thinking of her next meeting with Danny, but a normal life with romance is not that simple for someone who assists the Doctor in his adventures.

A clever edit is made to a later point in time, with amnesia being deliberately chosen by the four bank robbers. All of this comes together to form a very snappy and enticing pre credits sequence. Steven Moffat knew this opening would be a cut above the average and has gone on record as saying as much. It would be a real shame were the casual viewer to miss the start time by five minutes and be left to wander what is going on a little too much.

The two 'extra' companions on this mission both are easily distinguished. Psi is a die-hard gamer with a somewhat shaky record in staying on the straight and narrow. Rather endearingly his half-computer status results in his voice being prone to switching to a robotic tone under stress. His record of theft plays into a big crescendo of decision making as the episode really clicks into top gear. And shape shifter Salibra has some back-story she'd rather keep to herself. Despite a kindly persona she is rather unsettling in being so conversant with assuming others' visual identities. All the same, her special ability is crucial in order for the Doctor's party to casually walk into the Bank with their express aim of pulling off the 'heist'.

Alien creatures stand out in this colourful instalments. Memory worms are an unsettling but actually benign 'cameo' monster, whose function is actually to introduce the conceit of a gang of four who must figure out why they are suddenly together. The main alien creature, the Teller is a more important new addition to Doctor Who's huge menagerie, and has something of a minotaur aspect to its design. Although in some ways this foe is similar to the entity from 'The God Complex' it is also very different at the same time. The sequence in which an apparently dodgy businessman pays a heavy price for his misdemeanours relating to the Bank is a very effective 'behind the sofa' sequence. Although little is known about this somewhat unfortunate victim the scene ends up being simultaneously dark satire and sheer horror. There is also an uttering by the Doctor of the word 'soup' which will stick in viewers' minds. Peter Capaldi certainly knows how to make the most mundane sounding sentences have an edge to them.

The Teller's main role as a brain eater is sufficiently scary and memorable. However there is no question that the most malicious and cruel antagonist is villainess Miss Delphox - played by Keeley Hawes (Ashes to Ashes). We are even led to have sympathy for the monster, as it is harnessed to cause damage to enemies of the Bank, by being kept in either chains or in a form of cocoon. Furthermore Delphox manipulates the Teller to dispose of a nuisance individual or two and describes the action as 'account deleted' and generally struts about the Bank giving out orders in a nonchalant way. Evidently the Doctor will have to use his keenest wits to come up with a solution against such an antagonist.. except the finale has a twist where our Time Lord icon gets help from the most unlikely of sources.

Given the title of the episode the actual 'Mission Impossible' material is given suitably sufficient screen time to build up, and then pays off in a fluid and engaging way. The uncertainty over the Architect's identity and whether he is someone to dislike is well done and the eventual twist over his motives is certainly one which may surprise the viewer; although I would imagine a certain number can perhaps be ahead of where Moffat and Thompson had imagined the general viewer to be.

The regulars are once again very enjoyable to watch. Capaldi is still growing from episode to episode, and I sincerely hope he will stay the standard three years in the title role if not substantially longer. He can go from being icy-cold to bubbly and optimistic in a heartbeat, and he is so definitively alien. Even with a cyborg and shape shifter for company, he stands out like a mega-watt light bulb. Many lines of dialogue feel so well-suited to him, and he gets to emphasise why his distinctive eyebrows should afford him 'authority'.

Clara is now somewhat back to traditional companion territory like a number of her episodes in 2013, but still the after-effects of episodes like Deep Breath and Listen are here to stay. The Doctor's expression makes clear that sees her as someone not to talk down to although he very much wants to be the leader and the one to inspire others to greater heights. And yet the emotions conveyed in the Robin Hood episode are also on show - right at the end of the story, as the Twelth Doctor displays a fit of pique and childishness. Overall both leads' performances make clear the various levels upon which The TARDIS crew dynamic works on.

I did think on seeing the name of Steven Thompson that this could be a somewhat flat episode like 'The Curse of the Black Spot' and 'Journey to the Centre of The Tardis' were. Instead this is perfectly solid and engaging and feels just right in its one-part/ 45 minute format. One nitpick I have is that the Doctor tells Clara not to 'think' in a manner reminiscent to combating the Weeping Angels. More importantly the main humanoid villainess just doesn't make a strong impression. Keeley Hawes is a stellar performer normally yet seems to have been landed with a poorly sketched character and doesn't really get out of second gear given her enormous talent. "Intruders are most welcome" is one example of a quip from Delphox - it just would have been good to have an actual story behind her as well as some malicious wit.

But nonetheless there is a very good final confrontation with the Doctor meeting 'the Director'. Belated exposition plays its part, even as the surrounding location becomes a threat in itself. The urgency of the Doctor's assertion of full knowledge - and determination to end the problem - makes this a very well paced and fulfilling final act to the episode. And the revelation behind the Teller is a fine scene, both poignant and logical given the other information from earlier.

Overall then this is a solid joint writing effort from Stephen Thompson and Steven Moffat; with perhaps their prior collaboration on 'Sherlock' allowing for a keen sense of what to bring out from one another. With frenetic action, satire, a surprise twist or two, and good lively direction this episode is to be enjoyed much in the same manner as those that preceded it in Series 8.

Occasionally an episode of Doctor Who comes along that makes you think differently about the show’s parameters: what it can do, what it can be, and what it can mean. Described by Steven Moffat as a “chamber piece”, this looks like a money-saving installment, focusing predominantly on the main cast of regulars, with no guest stars to speak of and no (visible) monsters. On paper, it's an odd idea. In fact, this doesn’t sound much like Doctor Who at all (even if it has a kind of precedent going back to 1964’s ‘The Edge of Destruction’).

Yet 'Listen' is a strong candidate for the most intricately structured 50 minutes of Who ever. Near the episode's beginning we see the Doctor in Clara’s mirror, reflected three times over, and it’s an image that prefigures three journeys into characters’ pasts and futures, along with three fragments of childhood or child-like fear. 'Listen' is rammed full of Moffatisms: there are fairytale rhymes, things you can’t look at but can only sense or glimpse, child characters who are given prominent roles, and non-linear storytelling with timelines jumbling, jumping and stuttering. But 'Listen' is much more than a showrunner’s reprise: it isn’t simply this year’s ‘Blink’, for example. For one thing, it doesn’t (quite) deliver a new monster – instead it questions what monsters do, and what functions they can serve, for those who pursue them. Very often in Doctor Who, monsters represent something; they’re allegories or symbols for a range of anxieties. 'Listen' purifies that strategy, boiling Who’s monsters down to their simplest, starkest essence: an experience of fear and a desire for knowledge.

Of course, it’s tempting to see ‘Listen’ as a meditation on childhood; a piece of pop psychoanalysis where our favourite Time Lord can be understood though a very briefly sketched childhood trauma, and where the child is all too obviously the father of the man. But at its crucial moments, ‘Listen’ isn’t about childhood at all: it’s more about parenting. The Doctor shouts at Clara, ordering her to safety as he prepares to confront his own fear and his own need to know: he asserts tough patriarchal authority, positioning Clara as a child who can't evaluate own best interests. But the ‘impossible girl’ is also given a maternal if not matriarchal role, later informing the Doctor that he must do as he is told (something he recognizes and submits to). 'Listen' is, at least partly, about knowing when to heed authority and when to listen to a parent’s protective voice. It is, finally, not the Doctor who’s given an omniscient voice-over; it's Clara who watches over him, as if parentally, and Clara who ties together the episode’s themes as one culminating object is threaded through two different childhoods and a family inheritance. The same image, the same material artefact, seemingly gives rise to “Dan the soldier man” and the Doctor that we know; each becomes a distorted mirror image of the other. Scared may be "a superpower", but that superpower is both metaphorical and literal in the current Doctor Who universe, refracted in different ways through Danny Pink and the Doctor.

Fear and the unseen monster – the “figure”, as closing credits dub it – are equated; each stands as a sort of constant companion. But there are other equations that are more subtle and even more intriguing. What are the two things that this episode refuses to show us clearly? The monsters that must never be seen… and the young Doctor, reduced to a silhouette and a curl of hair. Neither the monsters nor the child-Doctor can be clearly apprehended. The monster’s power – its hold over the imagination – stems from remaining invisible; it is an empty space, a blank Rorschach test onto which anything can be projected. But the proto-Doctor is equally withheld; for all that this story seems to stretch the show’s boundaries and format, it refuses to convert the unseen Doctor into a prosaic face and figure. Resisting realism and refusing representation, the young Doctor is just as mysterious as the perfectly hidden creatures, and hence he remains just as much a space for projection, imagination and fantasy. The Doctor and the monster: both are rendered dream-like and oneiric, shimmering at the edges of perception.

Douglas Mackinnon directs this evocative material with aplomb, having recently been responsible for half of Line of Duty 2, which itself featured a stellar performance from Keeley Hawes (gracing the ‘Next Time’ trailer here). Jenna Coleman and Samuel Anderson both shine in their Coupling-style flashforwards/flashbackwards romance, with Anderson also convincing in the dual role of Danny/Orson Pink. But for me this episode belongs to Peter Capaldi. He’s mesmerizing when speaking out loud to himself, and looks alarmingly demented at moments, as he seeks to uncover what’s “under your bed”. This is cerebral, provocative Doctor Who at its very finest (where provocative is probably ‘scary’ for deep people). And it features one of the most unusual missions in the series’ long history: this Doctor isn't seeking to overthrow an oppressive regime or repel an alien invasion. No, he wants to engage in the interpretation of dreams, unusually allowing the TARDIS to travel via 'subconscious' means.

To worry about continuity seems to miss all the poetry of this episode. Perhaps some devotees will feel that the Doctor’s early years should have stayed firmly off-screen, or that Clara is being given too much sway over the Doctor’s identity here – she seems to symbolically create “Dan” and the Time Lord: soldiers whose power to protect is rooted in fear. Perhaps others will worry about how the TARDIS can so easily find its way to that barn, and that tearful child. But if 'Listen' plays on certain fan fears (of a Doctor that isn’t quite heroic or mysterious enough), then it does so in order to find new possibilities in the programme’s storytelling engines, and to worry away at fixed images of 'the hero'. In The Inner World of Doctor Who, Iain MacRury and Michael Rustin suggest that the Doctor can often be interpreted as a kind of “inadvertent therapist” (p.290), listening to others and helping them remake and re-order their lives. Here, though, it is the Doctor who is analysed by a script that ranks among the show’s most experimental explorations. What really lurks under the Doctor's bed? This is Doctor Who that demands to be thought about. It’s the programme’s format rewritten and yet perfectly encapsulated at one and the same time. And it leaves us with a beautiful image: the good enough hero as a kind of broken soldier.

The economical, sparse and interlocking structures of 'Listen' – treating continuity as a space for creative play – potentially make this Steven Moffat’s best Who script to date. It’s about striking images rather than spectacular effects; it’s about what it means to be scared, rather than cool and merchandisable monsters; it’s about “real, inter-human” date stuff just as much as the end of time, and it’s about the productive, transformative work that dreaming can sometimes perform. Rupert’s dream which gives rise to his new self may be implanted by the Doctor, in a sense, just as the Doctor’s own 'dream' of himself is seeded by Clara, but these science-fictional suggestions nevertheless stress the importance of our interior lives and dreamscapes. The Doctor’s interest in a seemingly universal dream (and its interpretation) ultimately gives way to dreams of a better self.

On paper, this might not sound quite like Doctor Who. Perhaps this ‘Fear & Monsters’ riff amounts to Moffat’s ‘Love & Monsters’ moment, and may be it’ll prove to be just as divisive. But watch ‘Listen’ without prejudice, and you’ll find series eight of Doctor Who humming with a darkly glittering and serious brilliance. We’re past the fiftieth anniversary, but there are still new things, as raw and energising as childhood fears, to be said and heard through the medium of Who.

There can't really be an 'instant classic': classics take time to settle into fan consensus. But if such an entity existed, and if it could be glimpsed, then 'Listen' would surely deserve the title.

Back when Robin Hood - Prince of Thieves was bringing in the punters at cinema screens, Doctor Who was looking like a completely finished tv franchise. Few loyal viewers or die-hard fans could imagine it coming back stronger than ever and being confident enough to be more varied in tone and subject matter on a weekly basis than the original run generally aspired to. Time has perhaps not been kind to the blockbuster epic which featured Kevin Costner sound distinctly American, yet the film has also managed to enter the public’s consciousness on quite a deep level. Certainly many adult viewers of this latest episode will almost find it surreally familiar in that special way that Doctor Who can be. Perhaps it is a surprise that our great TV show has never directly featured the heroic outlaw and his ‘merry’ band of men.

This episode from the pen of Mark Gatiss is in some respects refreshingly linear – there is little that requires the viewer to connect the dots on their own initiative, and each scene builds on the next in a straightforward if predictable fashion. Of course there are some revelations as not all is as it appears to be, and notably the Doctor ends up not being proved totally correct, and that is in part due to his rather protective stance towards Clara. A good tribute to the river fight featured in the celebrated story sees the Doctor takes on Robin on a narrow bridge over the river. It is a nice moment that exposes some of the Doctor’s vanity and pride. However much later in the episode it is emulated in a manner that takes away the crucial drama and also feels self-indulgent.

The direction, design, music and acting is mostly solid – although the key role of Robin Hood is just a little under-cooked both in script and performance - if by no means badly done. Although Robin sounds authentic enough, there is perhaps too much obvious effort of him conveying energy and roguish charm, rather than just embodying those qualities. Right from his first appearance where he declares that he has answered the Doctor’s call with a pronounced wink the viewer will not be bored by this Robin, but perhaps will also not focus on what makes him tick either. On the plus side, anytime that Tom Riley interacts with Jenna Coleman, there is a definite sense of chemistry and Robin is more believable. For the most part though he feels like having just one persona of ‘gung ho’, ‘flippant’, ‘romantic’ or ‘agitated’ and there is little complexity that the best guest characters have had in modern Doctor Who.

Peter Capaldi has many of the best lines from Gatiss’ script and at this point in series 8 I have now been able to adjust to his rapid fire diction (that contrasts with Matt Smith's more deliberate manner). He has so many ways to convey emotion and like all strong Doctors has the right bland of humanity and alien detachment. Notably he is somewhat less cold than the preceding week’s adventure with the Daleks but then this story is a decidedly jolly romp and has little pretentions to be something else underneath the surface. There is even some modesty in the early scenes when Clara again reaffirms her belief in the Doctor as the definitive well-meaning person to which he responds that he is just ‘passing the time’ – a nice little pun which is played straight. The Doctor’s cynicism over this forest/castle environment actually being the late 12th century and perhaps something rather more artificial is a brave move and yet just what the new season has been putting forward so far with the lead character. Clearly Steven Moffatt and Peter Capaldi have put a lot of work into making this latest incarnation stand out distinctly from Doctors 10 and 11.

Rather fittingly the gloriously wicked Sheriff of Nottingham also has feelings towards Clara and probably appreciates her more for who she is – a thoroughly capable independent woman who knows her abilities and doesn’t talk around subjects. The way that Ben Miller comes across as a despicable and yet thoroughly charismatic and engaging character is a big plus for this episode, but certainly no surprise given how strong a career this versatile performer has had thus far. The episode also has a very clever variant on the usual background to the Sheriff – his ambitions in general are revealed to be rather bigger than scale than many previous portrayals of the character in yesteryear.The only drawback is that Miller is so strong that when he eventually faces Robin in a key battle towards the end all the attention and excitement seems to centre around him. Of course many villains in film and tv steal the show, but it still feels jarringly lopsided – given how much screen time Robin has as well.

The episode has a lot of snappy elements to enjoy. One of the really funny moments involves a contest to find the best archer in land. The Doctor's marksmanship being top-notch somehow feels right for the Twelfth Doctor, and it is good to see him with a weapon other than sonic screwdriver .. for a few moments anyway. The prize of the golden arrow is tied into plot well, making this sequence not only entertaining but also key to the story. Less positively some dialogue comes off as cod-mediaeval, reminding me of 'The King's Demons' from the early 1980s. Despite the deliberate choice to set the story in the time of King John, I feel that the writer did not mean to pay tribute to a rather mediocre Peter Davison adventure. However the finale to the main story has some sharp dialogue and sharp combat which perhaps ends in a slightly slapstick way but is shot stylishly all the same. The Doctors involvement in final resolution is well done and quite a heart-warming moment that will resonate with many viewers perhaps unused to an older looking Doctor. Following that is a clever coda which pays off the viewer looking for clues over the identity of a supporting character with fairly limited screen time.

The biggest compliment I can give the episode ultimately is that it sets out to achieve its key objectives and it firmly establishes the Doctor/ Clara dynamic as something with a lot of substance. As much as I liked Jenna Coleman’s work from day one, she has really progressed now and Moffatt and his writing team now seem to know how to maximise the character’s effectiveness; something that was not always apparent in episodes like Nightmare of Silver for instance. Also the Doctor's arrogance is skilfully measure by Gatiss and it is also good to see him clearly concerned for Clara's safety having been rather casual about her in the second episode.

Finally -all fans of classic make sure you don't miss the ship's database scene as a clever cameo by one of the early Doctors ties in neatly with the main story.

Catherine Tate has said that before she joined the series that she thought the Daleks were in every episode of Doctor Who; viewers who have joined the show since the 50th Anniversary might well think the same, as the Doctor's greatest foe return for their third appearance in four episodes! I've never been a great fan of the ranting exterminators so yet another encounter so early in the series was not on my priority list of things to look forward to; it would need a good 'gimmick' to draw me in, which in this case was the Doctor encountering a lone, 'good' Dalek.

The story already has one good thing going for it, of course, Peter Capaldi. His portrayal of this plain-spoken, focussed but also easily side-tracked Doctor never ceases to be fascinating on screen; his coffee-run has a diversion in saving a life, yet having no other interest until there's something less 'boring' to get involved in; his practical but insensitive solution to escaping the Dalek antibodies (not to mention tasteless comments a little later), but then followed by an impassioned argument to regain Rusty's sense of 'goodness' once more; and of course his final 'dismissal' of Journey as a soldier when he departs. Donna had pointed out to the Doctor that he needed someone to temper him over a thousand years before, and this new 'reset' Doctor certainly needs a moral compass to guide him, the job of which of course falls to Clara. This possibly does weigh on his mind, and as the pre-publicity forewarned us, he asks her if he is a good man, to which she replies that she honestly doesn't know. He is aware that he isn't so "feely" as in previous lives, as the (also heavily publicised) "She's my carer - she cares so I don't have to" comment re-iterates. I'm not entirely sure how long this 'alien' Doctor can continue throughout the twelve episodes before a lack of softening becomes mundane to watch, but I somehow suspect that with someone like Capaldi in command of the character this isn't something we need worry about.

So, that 'good' Dalek, what's that all about? It seems that the captured survivor from a battle can see the Daleks for what they really are, and doesn't like what it sees; however, it has also been badly damaged and thus piques the Doctor's interest to help 'heal' it. It was probably pretty obvious that by doing so the Doctor would also restore the its "Dalek Factor", too, but I was sufficiently drawn into the tale not to think of that, beforehand. For a long-term fan such as myself there are the parallels with The Evil of the Daleks to draw upon, and the memory conditioning sits neatly with that former story's realisation - not that this is important to the casual viewer, and it seems the Doctor had forgotten too as he seems to feel vindicated when Rusty reverts to type once repaired. However, this is his prejudice for the Dalek race coming through, and that ultimately bites him on the bum when Rusty perceives and draws upon that hatred as its emotions are re-enabled by Clara.

It's probably safe to say that Rusty is a balanced individual, unlike our previous Dalek-turning-good that was so excellently realised in Dalek back in 2005. In that story the Dalek saw itself as impure and so sought self-destruction; no such sign from Rusty, and as it heads off to rejoin the Dalek fleet it seems very likely that we will see the repurcusions of this 'infiltration' at a later date. There's also the other hark back to that former episode too: there, the (then) lone survivor from the Time War suggests that the Doctor would make a good Dalek; here, Rusty informs the Doctor that he isn't a good Dalek, the Time Lord is himself - maybe Clara won't be the sole source of guidance to the Doctor as he subconsciously struggles out of darkness...

Being this is modern Doctor Who, as well as the 'sci-fi' excitement there's also the back-on-Earth 'domestic' to consider, too. Where would we be without some form of love interest in Doctor Who (shh!), and in this series this takes the form of new teacher at Clara's school, Danny Pink. Being that we only have a few minutes to set-up a new character, so in moments we know he's an ex-soldier whose had a bad encounter that continues to cast a shadow over him, and it's also pretty obvious that this will be a cause of friction with the Doctor after another not-too-subtle signpost from the Doctor's comment to Journey about her profession. Considering his 'crash-entry' into the series, Samuel Anderson does a good job of introducing the conflicted Danny, and it'll be interesting to see how he develops over the next few weeks.

The big Dalek battle at the end was okay, but the plethora of explosions didn't hide their inability to hit targets (maybe they just feel that overwhelming numbers win out extermination-wise rather than being more accurate). The battle cries were fun to hear, though a little frustrating in not being quite the same as those from the classic era they were mimicking (or is that just the memory cheating again?!!). The spaceship crew were pretty unmemorable though, and main girl Journey was herself a bit bland (but why do I get the feeling we haven't seen the last of her, either?). The internals of Rusty were handled well, though I wasn't too sure of the miniturisation scale at times (not to mention them having a handy minituriser to hand, too, shades of The Invisible Enemy come to mind).

Looking at the story as whole, Into The Dalek was a reasonable tale, and certainly more watch-worthy than the ratings juggernaut on ITV, but I think it safely falls into the "average" category of story. Capaldi, excepted!

Considering the feral response to The Time of the Doctor on social media in the last week, Doctor Who fans seem more divided than ever. All the goodwill and euphoria that followed the 50th anniversary special The Day of the Doctor evaporated within 24 hours, with The Time of the Doctor either lauded or despised. The doomsday brigade of fans are already calling for a new showrunner, arguing that Steven Moffat has “gone too far” (whatever that means!) and warning that if the program is allowed to continue “on a downward spiral” (whatever that also means!), Doctor Who will be cancelled (never mind that the ratings are solid!).

Well, I’m here to assure the rest of us the rumours of Doctor Who’s demise have been greatly exaggerated. If the TV program fades away in the next few years, it won’t be because of The Time of the Doctor specifically or Steven Moffat’s apparent “megalomania”. Going into the ninth year since its revival, Doctor Who has already exceeded the average life span of other TV programs. The Time of the Doctor gives the Time Lord – and the program – a kick-start. What more could fans have asked for?

Granted, the episode isn’t perfect – but even the best episodes of Doctor Who across the ages have their flaws. The premise is sound – a horde of alien races besiege the planet Trenzalore to ensure that an age-old prophecy does not eventuate and the Doctor is forced to defend the planet’s hapless inhabitants in the crossfire and accept his own mortality. It is in the execution that the episode has its ups and downs. So what works and what doesn’t?

Much as part two of The End of Time was a valedictory tour for David Tennant’s Doctor, so this episode is a valediction for Matt Smith’s Time Lord. The Silents, Weeping Angels, Sontarans, Cybermen and Daleks are present to give Smith’s Doctor a spectacular send-off – but with the exception of the Daleks and the Church of the Papal Mainframe (including the Silents), most of this menagerie of aliens and monsters are superfluous to the story. They did not all need to be explicitly shown, need only have been inferred in dialogue and some of the sequences that feature them could have been left on the cutting room floor in favour of more expository material and more interaction between the Doctor and Clara.

For example, the arrival of the Silents while Clara is waiting outside Tasha Lem’s chapel is effective in generating menace but it is ultimately unnecessary when we later learn they are the good guys! The random appearance of the Weeping Angels in the snow is also pointless (if ever there was a story in which the Angels should not have appeared, this was it!). The incursions by the Sontaran duo – basically an excuse for Dan Starkey to reprise Strax twice over! – and the wooden Cyberman are also played up for comedy but otherwise add little to the story. The wooden Cyberman would have been ingenious in The Next Doctor a few years ago but here it is about as useful as the puppet Monoid that we glimpse in the puppet show about the Doctor’s adventures!

What also doesn’t work (and which I believe is at the heart of many of the complaints about this episode) is the comedy in the first 20 minutes of the story. While the pre-titles sequence is amusing, I suspect the comedy would not be so predominant if this were a regular episode. It’s as if Moffat feels obligated to inject a lot of humour into the opening minutes of the story because it is a de facto Christmas special rather than just letting events unfold and adding lighter moments along the way. The Doctor appearing naked before Clara and her relatives is symptomatic of his madcap nature and you cannot help but laugh (even on repeated viewings) but otherwise this whole sequence could have been sacrificed (no religious pun intended!) for more mystery and drama. Nevertheless, kudos to artistes James Buller, Elizabeth Rider and Sheila Reid who really look as if they are seeing a naked man when Matt Smith is fully dressed!

However, once the comedy settles down and we learn what the source of the mysterious distress signal reverberating throughout the cosmos is, The Time of the Doctor is as exciting, dramatic and ambitious as expected. It is ironic that while the Time Lords and Gallifrey are not physically in the episode, the threat and opportunity their return signifies is more omnipresent than the menagerie of aliens and monsters that physically threaten the Doctor and Clara. Some things are better heard and felt but not seen – a brilliant tactic which Doctor Who down the years has perfected. It is why the opening visuals to the episode are magnificent – the swarm of Dalek, Judoon, Sontaran, Cyberman, Silurian and Sontaran ships (amongst others) ranged against the Saturn-like planet of Trenzalore are undeniably impressive and say a lot more than showing a handful of monsters. It is why the visual of Tasha Lem’s proclamation of the siege of Trenzalore and vow that “silence will fall” (witnessed by Church devotees on floating platforms) is also virtually identical to the cliffhanger to part one of The End of Time (when the Time Lords were revealed for the first time in the modern series) – it emphasises how much the stakes have been raised in the quest for universal peace. It is why Tasha Lem’s description of how the distress signal generates “something overpowering ... pure, unadulterated fear” also hints at a threat possibly greater than the races besieging Trenzalore itself (despite the Doctor’s insistence, can we be sure the Time Lords’ intended return is benevolent and not vengeful?).

While some fans may also not buy into the story of an ages old conflict and the Doctor’s protection of a pre-industrialised society that does not seem to develop (or want to expand and grow), the story through Tasha Lem’s narration is convincing enough. Orla Brady is impressive as the Mother Superious Tasha Lem, proving ambiguous enough (is she hero or villain – or a bit of both?) to keep you guessing about her motives right to the end of the episode. I suspect we haven’t seen the last of her.

As Steven Moffat said at the 50th anniversary celebrations in November, Matt Smith really acts his heart out, portraying an ageing Doctor in a stalemate with his greatest enemies. What still stands out about Smith’s Doctor even as he ages is his affinity with children. This has been constant since the Eleventh Doctor’s initial meeting with young Amelia Pond – and his interaction with Barnable in the episode is touching. It reinforces that deep down Smith’s Doctor is at heart(s) a big kid with an unending childlike thirst for life and adventure.

Smith’s transformation in the climactic minutes of the episode into an almost Hartnell-esque figure (at least in look) is extraordinary. It’s a performance tinged with regret and sadness but also full of humour and warmth. The transformation is symbolic of the program coming full circle. We’re back to the cranky, cantankerous yet sharply intelligent and brilliant old man that we first met 50 years ago in a junkyard. Who could argue that is not poetic?

For the second time in as many episodes it is the companion who is again the game breaker. Clara’s monologue to the Time Lords is beautifully written by Moffat and delivered with great feeling and passion by Jenna Coleman: “You’ve been asking the question but you lot have been getting it wrong! His name is the Doctor – all the name he needs, everything you know about him! And if you love him – and you should – help him! Help him!” It’s a fantastic performance from Coleman who again rises above the limitations of her character to deliver a solid performance. It shows what a great asset she is to Doctor Who even when she doesn’t have much to do. Just imagine how good Coleman may be in the next season if Clara is given more to do!

This could have been a great episode for Clara. It’s a pity that one of the scenes deleted from the final broadcast features Clara telling the Doctor how much she misses him. It shows how affectionate their relationship is – well beyond the Doctor’s description of her as an “associate”. What is mentioned and goes unexplored are Clara’s feelings for the Doctor as well, particularly when the truth field indicates that she fancies him. “Oh no, not again!” you may be thinking. Nevertheless, this attempt at romance offers an interesting angle for the next series when Peter Capaldi takes on the reins – how Clara copes with loving a much older incarnation of a man who will be less potential boyfriend material and more father figure.

Some fans have been livid about the divine intervention of the Time Lords in the climax – but what we get is a “MacGuffin” no different than the divine intervention of “Bad Wolf” Rose in The Parting of the Ways (when the Doctor is also in a stand-off with the Dalek Emperor). The intervention is a truly magical moment (perhaps more magical because you know what’s coming!) and magic and wonder are things that are all too often missing from so-called SF and fantasy television nowadays. How can you not cheer at Smith’s performance when the Doctor, true to form, defies the rules once again?

Yet apparently the resolution goes too far for the fans condemning this episode. In 1977, when The Deadly Assassin was broadcast, some fans whinged that Robert Holmes’ portrayal of the Time Lords negated the earlier impressions of them as a seemingly benevolent, omnipotent, enigmatic and divine race of beings (as hinted in The War Games and The Three Doctors). Flash forward 36 years and now we’re complaining that the Time Lords are apparently benevolent, omnipotent, enigmatic and divine all over again and not the corrupt, incompetent bureaucrats Holmes made them out to be! It just shows there is no pleasing some and the program can never win!

I also don’t believe fans can complain too much about the way the Time Lords gifted the Doctor a whole new regeneration cycle. In my mind, just as I always thought it was inevitable the Time Lords would be revived in the series so it was destined that the Doctor one day would be granted a whole new lease of life. I was never sure how this would be achieved and I certainly did not expect it to be resolved so quickly (after all, for most of 2013 we thought the Doctor still had two regenerations in reserve!) but having now seen it happen in The Time of the Doctor I could not envisage it happening any other way. OK, maybe the science of it doesn’t make sense but Doctor Who has never made sense scientifically. What has mattered is the sentiment behind it – and we see that in Smith’s brilliant final moments.

Smith delivers a confident, philosophical, fitting and touching monologue for his Doctor and the character of the Time Lord overall: “We all change when you think about it. We’re all different people – all through our lives. And that’s OK, that’s good, you’ve got to keep moving, so long as you remember all the people that you used to be. I will not forget one line of this, not one day, I swear. I will always remember when the Doctor was me.”

Smith’s discarding of the bow tie is a poignant touch. There is none of the petulant, self-indulgent and indecorous ranting of the Tenth Doctor’s departure in Smith’s final moments (as powerful as David Tennant’s performance was in The End of Time, the Tenth Doctor’s departure seems disingenuous in hindsight now we know he was too vain to fully regenerate in Journey’s End!). Smith’s departure is dignified, accommodating and affectionate – coming from a Time Lord whose incarnation has survived for over a millennium and has accepted his time is up.

My only major disappointment with the episode is the entrance of Peter Capaldi’s Doctor which is underwhelming, visually and in the dialogue. Even allowing for the fact that the regeneration began 10 minutes earlier, the transformation from Smith to Capaldi isn’t as visually exciting as the Eccleston/Tennant and Tennant/Smith transitions. It is almost a “blink and you’ll miss it” moment. As for Capaldi’s first line as the Doctor: “Kidneys!” Seriously? It’s on a par with Colin Baker’s parting words of “Carrot juice! Carrot juice!” Maybe Moffat thought it would be funny but it falls flat after such a magnificent farewell for Smith. Fortunately this will not impact on Capaldi’s Doctor – I expect he will be brilliant in the role and an actor of his calibre will rise above the quality of the material that he is given - good or bad!

The Time of the Doctor is not perfect but is a dramatic and in parts stirring conclusion to Matt Smith’s era. Moffat in a passage of exposition between the Doctor and Tasha Lem manages to tie up many of the loose ends from Smith’s first few seasons in his fashionably “wibbly wobbly, timey wimey” way: the Pandorica/crack in time, the Order of the Silence, Trenzalore and Gallifrey Falls No More. It is difficult to know whether Moffat had a masterplan from the beginning or if he has made it all up as he goes along! Nevertheless, most of the jigsaw pieces fall into place, even if the execution in parts of this episode seem clumsy and there are still some “timey wimey” questions and potential paradoxes in play (eg is Clara still the “Impossible Girl”?).

Significantly, The Time of the Doctor is a watershed episode. Just as the return of Gallifrey established exciting possibilities at the end of The Day of the Doctor, the Doctor’s new lease of life in The Time of the Doctor gives not just the title character but the show itself a fantastic opportunity to renew and rejuvenate itself. The Capaldi Doctor is not just the 12th Doctor – he is now the first Doctor in a whole new regeneration cycle.

What better gift could fans have asked for in the program’s 50th anniversary year? Yet judging by the feral reaction of some to this episode in blogs and social media, you’d be forgiven for thinking they want to see the demise of the show! Oh well, winners (the Doctor) are grinners and losers (disaffected fans) can please themselves. There’s always Moffat’s The Curse of Fatal Death as an alternative of how the Doctor cheats death - etheric beam locators and all!