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On 1月23日, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - "All Roads Lead to Rome" was first broadcast on BBC1.
- 1965 - Part one of the comic story Genesis of Evil was first published in TV Century 21 #1.
- 1971 - Episode four of Terror of the Autons was first broadcast on BBC1.
- 1971 - Part six of the TV Comic story The Kingdom Builders was first published.
- 1992 - The novelisation of The Nightmare Fair was reissued by Target Books.
- 1992 - DWM 183 was first released by Marvel Comics.
- 2008 - The Doctor Who: Battles in Time comic story Android of Death was first published.
- 2008 - Sleeper was first broadcast on BBC Two, followed by Home and Hart.
- 2012 - The Sensorites was released on Region 2 DVD.
- 2013 - The Puffin eshort short story A Big Hand for the Doctor was first released by Puffin Books.
- 2013 - DWDVDF 106 was first published by GE Fabbri Ltd.
- 2015 - Toby Hadoke's Who's Round 104 was released online.
- 2017 - Graceless IV was first released by Big Finish Productions.
- 2018 - The Diary of River Song: Series Three was first released by Big Finish Productions.
- 2019 - TCH 89 was first released by Hachette Partworks.