On 18 September, a number of things set in or relevant to the Doctor Who universe were released or published.
- 1965 - "Trap of Steel" was first broadcast on BBC1.
- 1965 - Part three of the TV Comic story Lizardworld was first published.
- 1971 - Part nine of The Celluloid Midas was first published in Countdown.
- 1976 - Part three of The Masque of Mandragora was first broadcast on BBC1.
- 1976 - Part one of the TV Comic story The Mutant Strain was first published.
- 1983 - A Celebration was first published by W.H. Allen & Co.
- 1986 - The Doctor Who File was first published by W.H. Allen & Co.
- 2008 - Part three of the Doctor Who Adventures comic story By Order of the Bonemenders was first published.
- 2013 - DWDVDF 123 was first published by GE Fabbri Ltd.
- 2013 - The sixth series of Jago and Litefoot was first released by Big Finish.