On 13 December, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - Part four of the TV Comic story Shark Bait was first published.
- 1975 - Part four of The Android Invasion was first broadcast on BBC1.
- 1975 - Part two of the TV Comic story The Dalek Revenge was first published.
- 1979 - DWM 10 was released by Marvel Comics.
- 1980 - Part four of State of Decay was first broadcast on BBC1.
- 1984 - DWM 96 was first released by Marvel Comics.
- 2001 - DWM 312 was first released by Panini Comics.
- 2005 - The novel Project: Valhalla was first published by Big Finish.
- 2005 - Other Lives and the Cyberman audio story Conversion were first released by Big Finish.
- 2005 - Cryptobiosis was released exclusively to Big Finish subscribers.
- 2006 - DWA 19 was first released by BBC Magazines.
- 2006 - The Doctor Who: Battles in Time comic story The Glutonoid Menace was first published.
- 2007 - DWA 45 was first released by BBC Magazines.
- 2007 - DWM 390 was first released by Panini Comics.
- 2012 - DWM 455 was first released by Panini Comics.
- 2013 - Daleks' Invasion Earth 2150 A.D. was released to VOD with added comedy commentary by RiffTrax.
- 2014 - Toby Hadok's Who's Round 91 was released online.
- 2016 - Absolute Power and Quicksilver were first released by Big Finish.
- 2017 - The Wreck of the World was first released by Big Finish.
- 2017 - TCH 66 was first released by Hachette Partworks.
- 2018 - DWM 533 was first released by Panini Comics.
- 2018 - Toby Hadoke's Who's Round 242 was released online.
- 2018 - DWFC 139 was first released by Eaglemoss Collections.
- 2019 - The vinyl version of The Web Planet was released.
- 2021 - The Collection - Season 17 was released on Blu-ray.
- What's New.... Big Finish, via Internet Archive. Retrieved on 17 December 2005.