On 17 December, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1966 - Episode one of The Highlanders was first broadcast on BBC1.
- 1966 - Part four of the TV Comic story The Experimenters was first published.
- 1977 - Part four of The Sun Makers was first broadcast BBC1.
- 1977 - Part five of the TV Comic story The Aqua-City was first published.
- 1993 - UNIT Recruiting Film was first broadcast on BBC One, alongside a repeat airing of the final episode of Planet of the Daleks.
- 1998 - DWM 273 was first released by Marvel Comics.
- 2001 - The audio story The One Doctor was first released by Big Finish Productions.
- 2006 - Out of Time was first broadcast on BBC Three.
- 2009 - DWA 146 was first released by BBC Magazines.
- 2009 - Part five of the Torchwood Magazine comic story Broken was first published.
- 2009 - Part one of The Doctor on My Shoulder was first published online.
- 2010 - Parts three and four of Snowfall was first published online.
- 2012 - Vastra Investigates: A Christmas Prequel was released online.
- 2013 - Afterlife and Trial of the Valeyard were first released by Big Finish.
- 2014 - The Rani Elite was first released by Big Finish.
- 2014 - Issue 5 of Doctor Who: The Tenth Doctor' was first released digitally by Titan Comics.
- 2014 - Toby Hadoke's Who's Round 95 was released online.
- 2015 - Toby Hadoke's Who's Round 151 was released online.
- 2015 - DWMSE 42 was first released by Panini Comics.
- 2015 - DWFC 61 was first released by Eaglemoss Collections.
- 2019 - The War Master audio anthology Anti-Genesis was first released by Big Finish.
- 2020 - The Torchwood audio story The Crown was first released by Big Finish.
- The One Doctor. Big Finish, via Internet Archive. Retrieved on 9 February 2002.