Hartnell's Doctor, with all the 1960s political incorrectness in place. At the same time the original Doctor has a lot of fun at the expense of the modern one's sonic glasses and electric guitar. There's something funny about the 12th Doctor realising that he came from this politically incorrect, funny old man. This is who he was." Den of Geek reported that this was a controversial aspect of the episode even in the pre-publicity: "the casual sexism of the first Doctor weaved unsubtly throughout this story and played for laughs." Patrick Mulkern of Radio Times, despite his praise of the episode, criticised Moffat's characterisation for the First Doctor, believing that viewers "will cavil that his character has been revised, made to seem more old-fashioned than he was." Michael Hogan offered a negative review for The Daily Telegraph, criticising Moffat's writing and concluding that viewers "would have been left scratching their heads in bafflement. It was self-indulgent, overcomplicated and, most unforgivably, frequently boring." Commercial releases Home media The episode was released on DVD and Blu-ray in Region 2 on 22 January 2018, in Region 4 on 7 February 2018, and in Region 1 on 13 February 2018. "Twice Upon a Time" is also the first Doctor Who episode to be released on the Ultra HD Blu-ray format. It was released in North America on 25 September 2018. In print A novelisation of the story, written by Paul Cornell, was released in paperback by BBC Books on 5 April 2018. Also on the same day, a digital edition was released, both as part of the Target Collection. Notes References Bibliography External links 2017 British television episodes British Christmas television episodes Christmas truce Doctor Who Christmas specials Doctor Who multi-Doctor stories Doctor Who serials novelised by Paul Cornell Fiction set in 1914 Fiction set in 1986 First Doctor serials Novels by Paul Cornell Television episodes written by Steven Moffat Thirteenth Doctor episodes Twelfth Doctor episodes Television episodes about World War I Television episodes set in the 1980s