On 20 October, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1973 - Part two of the TV Comic story Nova was first published.
- 1977 - The novelisation of The Deadly Assassin was released by Target Books.
- 1979 - Part four of City of Death was first broadcast on BBC1.
- 1980 - The anthology The Adventures of K9 was first published by Sparrow Books.
- 1983 - The novelisation of Arc of Infinity was first released by Target Books.
- 1988 - The novelisation of The Edge of Destruction was first released by Target Books.
- 1994 - St Anthony's Fire and Venusian Lullaby were first published by Virgin Books.
- 2003 - Invasion of the Dinosaurs was released on VHS.
- 2007 - The Target Book was first published by Telos Publishing.
- 2008 - Part one of Secrets of the Stars was first broadcast on CBBC.
- 2010 - DWDVDF 47 was first published by GE Fabbri Ltd.
- 2011 - The Doctor Who Adventures comic story The Kchrusivour Gambit was first published.
- 2011 - DWM 440 was first released by Panini Comics.
- 2016 - For Tonight We Might Die was first shown at the Class World Premiere in Shoreditch.
- 2016 - DWM 505 was first released by Panini Comics.