‘This is the day you are erased from existence forever.’ This was conceived not only as Whittaker and Chibnall’s swansong, but also the final Doctor Who episode for the foreseeable future – the Survival of the 21^st Century series. It was also part of the BBC’s centenary celebrations. Thus Chibnall has to strike a balance between wrapping up the continuity of his own episodes, and making something that marks four, 17, 59, or 100 years depending on your point of view.

‘I just make the sassy comments.’ A 10-part audio series from BBC Studios with occasional appearances by the Doctor but largely fronted by an ensemble cast of new characters and written by a YA author, this had the potential to be Class for radio. It’s not helped by a slightly desperate-sounding trailer featuring Jodie Whittaker fretting that everyone is forgetting she exists, and begging us, ‘Please listen.’ It centres around the Blue Box Files – a sort of amateur Uncanny podcast – which unwittingly exposes an imminent global apocalypse.

‘Let’s take a look at this shipwreck.’ A pirate story with Sea Devils? Been done (back in DWM’s Devil of the Deep in 1982). True to Chibnall’s desire to feature trailblazing women from history, this features one of the most successful female pirates ever – a bit less inspirational than Ada Lovelace or Rosa Parks, but I suppose you have to admire free enterprise. It also features a giant sea monster called Hua-Shen, and I spent most of this thinking, “Call it the Myrka you cowards.”

‘We’re stuck in a time loop with killer robots.’ It opens, like that other New Years Eve episode the TV Movie, with an old-style club song: appropriate for an episode set in a temporal orbit. What follows is like Heaven Sent reimagined for a bleary-eyed audience blinking through the excesses of the night before, with a simple plot (the TARDIS has caused a time loop while regenerating post-Flux, so the Doctor and friends get multiple chances to avoid extermination by vengeful Dalek survivors of the Flux).

‘I do not have time for your delusional witterings.’ The longest Doctor Who story since 1986 closes, like The Trial of a Time Lord, with an extended action-adventure that realises it’s bitten off more than it can chew, and ends up with a lot of noises off and kicking the can down the road. Still, on its own merits it at least centres the Doctor (all three of them), giving Whittaker her best material this series, and has plenty of nice moments. On balance it’s much better than it could have been.

‘Division is simple – and indescribable.’ So, this is it: the big reveal. The reason why the whole of creation is being very slowly destroyed. It’s because Division, an organisation set up to control the flow of time, fears the Doctor has given hope to the peoples of the universe (I underestimated the power of all those inspirational poster quotes). Therefore, they’ve decided to scrap it all and start again. Except, taking the old definition of madness (doing the same thing and expecting a different result) to cosmic extremes, Tecteun (for it is she!) is offering to take the Doctor back so she can do it all over again in the next life. Division is simple – indescribably stupid.

‘A rogue Weeping Angel? On the run from other Angels, hiding in the mind of a human?’ The only episode of Flux with a co-write credit, for The Haunting of Villa Diodati’s Maxine Alderton. Like her earlier episode, this leans into horror to become the most credible haunted house story of the new series. It’s a classic base under siege which synthesises elements of the Weeping Angels’ previous standalone stories (the setting recalls Wester Drumlins, much of the lore is from The Time of Angels, the captive community of victims is from Angels Take Manhattan and the abduction from a graveyard is like the Ghost Story for Christmas webcast) into something that feels fresh.