On 20 January, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1968 - Episode five of The Enemy of the World was first broadcast on BBC1.
- 1968 - Part four of the TV Comic story The Witches was first published.
- 1973 - Episode four of The Three Doctors was first broadcast on BBC1.
- 1973 - Part one of the TV Action comic story Deadly Choice was first published.
- 1977 - The novelisation of Carnival of Monsters was first published by Target Books.
- 1979 - Part one of The Armageddon Factor was first broadcast on BBC1.
- 1979 - Part six of the TV Comic story The Metal-Eaters was reprinted as a Fourth Doctor story.
- 1984 - Part two of The Awakening was first broadcast on BBC1.
- 1994 - Conundrum was first published by Virgin Books.
- 1994 - DWM 209 was first published.
- 1996 - Episode one of The Ghosts of N-Space was first broadcast on BBC Radio.
- 2011 - The Doctor Who Adventures comic story Rory's Story was first published.
- 2014 - The Time of the Doctor was released on Region 2 DVD and Blu-ray.
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