On 18 October, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1969 - Part three of the TV Comic story U.F.O. was first published.
- 1975 - Part four of Planet of Evil was first broadcast on BBC1.
- 1975 - Part six of the TV Comic story The Sinister Sea was first published.
- 1979 - DWM 2 was released by Marvel Comics.
- 1980 - Part four of Meglos was first broadcast on BBC1.
- 1986 - Part three of Mindwarp was first broadcast on BBC1.
- 1989 - Episode three of Ghost Light was first broadcast on BBC1.
- 2001 - The Scripts: Tom Baker 1974/5 was first published by BBC Books. This was an annotated collection of complete scripts from Season 12, Tom Baker's first season.
- 2006 - The Doctor Who: Battles in Time comic story Death Race Five Billion was first published.
- 2010 - Part one of The Vault of Secrets was first broadcast on CBBC. Later, episode two of Sarah Jane's Alien Files premièred with it.
- 2011 - Part two of The Man Who Never Was was first broadcast on CBBC, ending The Sarah Jane Adventures.
- 2012 - The Doctor Who Adventures comic story Garbage Day! was first published.
- 2014 - Flatline was first broadcast on BBC One.