On 16 December, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1967 - Episode six of The Ice Warriors was first broadcast on BBC1.
- 1967 - Part four of the TV Comic story Flower Power was first published.
- 1972 - Part three of the TV Action comic story Zeron Invasion was first published.
- 1974 - Doctor Who and the Daleks in Seven Keys to Doomsday premièred at the Adelphi Theatre.
- 1976 - The Doctor Who Dinosaur Book, the second edition of The Making of Doctor Who and the novelisation of Pyramids of Mars were first published by Target Books.
- 1978 - Episode four of The Androids of Tara was first broadcast on BBC1.
- 1978 - Part one of the TV Comic story The Metal-Eaters was reprinted as a Fourth Doctor story.
- 1989 - The Incredible Hulk Presents comic story Slimmer! was first published.
- 1999 - DWM 286 was first released by Panini Comics.
- 2009 - DWDVDF 25 was first published by GE Fabbri Ltd.
- 2009 - Cyberman 2 was first released by Big Finish Productions.
- 2010 - DWA 197 was first released by BBC Magazines.
- 2010 - Overture was first published in Torchwood Magazine's final issue.
- 2010 - DWM 429 was first published by Panini Comics.
- 2012 - Part two of Houdini and The Space Cuckoos was first published online.
- 2014 - An Ordinary Life was first released by Big Finish.
- 2014 - Toby Hadoke's Who's Round 94 was released online.
- 2015 - You Are the Doctor and Other Stories was first released by Big Finish.
- 2015 - The graphic novel The Fountains of Forever was first published by Titan Comics.
- 2015 - TCH 13 was first released by Hachette Partworks.
- 2016 - Toby Hadoke's Who's Round 198 was released online.
- 2020 - DWMSE 56 was first released by Panini Comics.
- 2021 - The Year of Martha Jones was first released by Big Finish.