On 16 April, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1966 - "The Dancing Floor" was first broadcast on BBC1.
- 1966 - Part one of the TV Comic story The Trodos Tyranny was first published.
- 1977 - Part five of the TV Comic story The Fire Feeders was first published.
- 1981 - The novelisation of The Enemy of the World was released by Target Books.
- 1987 - The novelisation of The Mind Robber was released by Target Books.
- 1992 - Cat's Cradle: Warhead was first published by Virgin Books.
- 1992 - DWM 186 was first released by Marvel Comics.
- 2005 - Aliens of London was first broadcast on BBC One. Later, I Get a Side-Kick Out of You aired on BBC Three.
- 2007 - Survival was released on Region 2 DVD.
- 2008 - Issue three of the IDW comic story Agent Provocateur was first published.
- 2008 - The Doctor Who: Battles in Time comic story The Creative Spark was first published.
- 2009 - Judgement of the Judoon, The Slitheen Excursion and Prisoner of the Daleks were first published by BBC Books.
- 2009 - The Doctor Who Adventures comic story Cyclops was first published.
- 2012 - Energy of the Daleks was first released by Big Finish Productions.
- 2013 - Toby Hadoke's Who's Round 12 was released online.
- 2014 - DWDVDF 138 was first published by GE Fabbri Ltd.
- 2015 - The Art of Doctor Who was released by Panini Comics.
- 2015 - Death Match was first released by Big Finish.
- 2017 - Whovians first aired on ABC2 and iView.
- 2019 - Year of the Drex Olympics was first released by Big Finish.