But did The Timeless Children actually make such a big change to Doctor Who lore? In the latest edition of the RadioTimes.com Doctor Who podcast Huw Fullerton, Patrick Cremona and Morgan Jeffery delve into the biggest revelations of the series 12 finale, unpick the continuity shifts and try to guess what comes next.
Are the Morbius Doctors now canon? Will Jo Martin’s Fugitive Doctor return to the series? Why were the Doctor’s past lives redacted, and by who? Has William Hartnell been dethroned as the First Doctor? And how will the Doctor escape her imprisonment ahead of the festive special?
For all that – plus our review of the episode – you can check out the podcast now.
Doctor Who returns to BBC One for a festive special in late 2020/early 2021