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On 1月5日, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1974 - Part four of The Time Warrior was first broadcast on BBC1.
- 1974 - Part four of the TV Comic story The Amateur was first published.
- 1980 - Part three of The Horns of Nimon was first broadcast on BBC1.
- 1982 - Part two of Castrovalva was first broadcast on BBC1.
- 1983 - Part two of Arc of Infinity was first broadcast on BBC1.
- 1984 - Part one of Warriors of the Deep was first broadcast on BBC1, beginning Doctor Who's 21st season.
- 1985 - Part one of Attack of the Cybermen was first broadcast on BBC1.
- 1998 - Kursaal and The Face of the Enemy were first published by BBC Books.
- 1998 - Timelash was released on VHS.
- 2003 - Sometime Never... was first published by BBC Books.
- 2006 - DWM 365 was first released by Panini Comics.
- 2009 - The Trial of a Time Lord was released on Region 4 DVD.
- 2010 - The Keys of Marinus and The Twin Dilemma were released on Region 1 DVD.
- 2012 - The Art of Death and the audiobook version of The Twin Dilemma were first released by AudioGO.
- 2012 - DWA 250 was first released by Immediate Media Company London Limited.
- 2015 - Flywheel Revolution was first released by Big Finish Productions.
- 2015 - DWFC 36 was first released by Eaglemoss Collections.
- 2017 - The Pirate Planet was first published by BBC Books, and released as an audiobook by BBC Physical Audio.
- 2020 - Part two of Spyfall was first broadcast on BBC One.