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On 5 December, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1964 - "Day of Reckoning" was first broadcast on BBC1.
- 1970 - Part six of the TV Comic story Trial of Fire was first published.
- 1985 - The novelisation of The Two Doctors was first released by Target Books.
- 1991 - Timewyrm: Revelation was first published by Virgin Books.
- 1991 - Time Lord was first published by Doctor Who Books.
- 1994 - Snakedance was released on VHS.
- 1996 - Bad Therapy and Cold Fusion were first published by Virgin Books.
- 1996 - The Completely Useless Encyclopedia was first published by Virgin Books.
- 1997 - Destiny of the Doctors was first released by BBC Multimedia.
- 2007 - About Time 6 was first published by Mad Norwegian Press.
- 2007 - Planet of Evil was released on Region 4 DVD.
- 2007 - The anthology Short Trips: The Ghosts of Christmas was first published by Big Finish.
- 2008 - The video games Black Hole and Clockwork Quest were first released online.
- 2008 - Top Trumps: Doctor Who video game released for the Nintendo Wii.
- 2009 - Iris Wildthyme and the Claws of Santa was first released by Big Finish.
- 2012 - DW12 3 was first released by IDW Publishing.
- 2013 - The Death Pit was first published by BBC Digital.
- 2013 - DWFC 8 and DWFC SP 1 were first published by Eaglemoss Publications Ltd.
- 2014 - Toby Hadoke's Who's Round 84 was released online.
- 2015 - Hell Bent was first broadcast on BBC One, concluding Series 9.
- 2018 - The Master of Callous was first released by Big Finish.
- 2018 - The Dæmons was first published by Obverse Books.
- 2019 - The audiobook version of Dragonfire and Dalek Attack: Blockade & Other Stories were released by BBC Audio.
- 2019 - Star Tales was released by BBC Books.
- 2021 - The Vanquishers was first transmitted on BBC One, concluding Doctor Who: Flux.
- 2022 - The Blu-ray box set The Collection: Season 2 was released.
- 2023 - In the Bleak Midwinter was first released by Big Finish.