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On 1 April, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1967
- Episode four of The Macra Terror was first broadcast on BBC1.
- Part three of the TV Comic story The Zombies was first published.
- 1969 - Get Off My Cloud debuted on BBC2.
- 1972
- Episode six of The Sea Devils was first broadcast on BBC1.
- Part five of the TV Action comic story The Planet of the Daleks was first published.
- 1978 - Part two of the TV Comic story The Eerie Manor was first published.
- 2002 - The Tomb of the Cybermen was released on Region 4 DVD.
- 2004 - DWM 342 was first released by Panini Comics.
- 2006 - Tardisode 1 was first released online.
- 2008 - Timelash and The Time Warrior were released on Region 1 DVD.
- 2009 - The Doctor Who: Battles in Time comic story The Guardians of Terror was first published.
- 2010
- DWA 160 was first released by BBC Magazines.
- The Masque of Mandragora was released on Region 4 DVD.
- DWM 420 was first released by Panini Comics.
- 2013 - Babblesphere was first released by AudioGO and Big Finish Productions.
- 2014 - Toby Hadoke's Who's Round 53 was released online.
- 2016 - Toby Hadoke's Who's Round 163 was released online.
- 2020 - Press Play was released on the Doctor Who website.
- 2021
- DWM 563 was first released by Panini Comics.
- The Planet of Dust & Other Stories and the audiobook version of Time-Flight were first released by BBC Audio.
- 2022 - VOR 158 was first published by Big Finish.
- 2023 - The Girl Who Died in The Black Archive series was first published by Obverse Books.