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On 27 April, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1968 - Episode one of The Wheel in Space was first broadcast on BBC1.
- 1968 - Part one of the TV Comic story The Dyrons was first published.
- 1974 - Part six of The Monster of Peladon was first broadcast on BBC1.
- 1974 - Part eight of the TV Comic story Is Anyone There? was first published.
- 1990 - Abslom Daak - Dalek Killer was first released by Marvel Comics.
- 1994 - DWCC 19 was first published by Marvel Comics.
- 2006 - TDW 3 was first broadcast on BBC One.
- 2006 - DWM 369 was first released by Panini Comics.
- 2007 - TDW 17, including episode four of The Infinite Quest, was first broadcast on BBC One.
- 2010 - The audio story Slipback was offered as part of a week-long give-away by The Daily Telegraph.
- 2011 - DW11 4 was first published by IDW Publishing.
- 2011 - The tie-in websites North West Historical Society and Daryl the Diver were released.
- 2013 - Journey to the Centre of the TARDIS was first broadcast on BBC One.
- 2016 - Night of the Kraken was first published by BBC Children's Books.
- 2018 - Doctor Who - Series 9 soundtrack was made available on iTunes/Apple Music and Spotify in the UK and Australia.
- 2021 - The First Doctor Adventures: Volume Five was first released by Big Finish.