18 September (releases)


 * 1965 - "Trap of Steel" was first broadcast on BBC1.
 * 1965 - Part three of the TV Century 21 comic story Plague of Death was first published.
 * 1965 - The RAF Finningley Airshow special was shown at a air show.
 * 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.
 * 2000 - The Fires of Vulcan was first released by Big Finish.
 * 2003 - DWM 335 was first released by Panini Comics.
 * 2006 - Short Trips: The Centenarian and The Reaping was first released by Big Finish Productions.
 * 2008 - DWA 82 was first released by BBC Magazines.
 * 2008 - DWM 400 was first released by Panini Comics.
 * 2013 - DWDVDF 123 was first published by GE Fabbri Ltd.
 * 2013 - The sixth series of Jago & Litefoot was first released by Big Finish.
 * 2014 - DWM 478 was first released by Panini Comics.
 * 2015 - Incoming Transmission was first released.
 * 2015 - Toby Hadoke's Who's Round 138 was released online.
 * 2019 - The audio anthology The First Doctor: Volume Three was first released by Big Finish.
 * 2023 - The Blu-ray box set The Collection: Season 20 was first released by BBC Studios.