23 September (releases)


 * 1967 - Episode four of The Tomb of the Cybermen was first broadcast on BBC1.
 * 1967 - Part four of the TV Comic story Egyptian Escapade was first published.
 * 1972 - Part six of the TV Action comic story The Ugrakks was first published.
 * 1976 - The novelisation of Frontier in Space was first released by Target Books.
 * 1978 - Part four of The Ribos Operation was first broadcast on BBC1.
 * 1999 - DWM 283 was first released by Marvel Comics, commemorating 20 years of Doctor Who's official magazine.
 * 2009 - DWDVDF 19 was first published by GE Fabbri Ltd.
 * 2010 - The Doctor Who Adventures comic story The Steel Web was first published.
 * 2010 - DWM 426 was first released by Panini Comics.
 * 2013 - The Beast of Babylon was first published by Puffin Books.
 * 2015 - Toby Hadoke's Who's Round 139 was released online.
 * 2016 - Toby Hadoke's Who's Round 186 was released online.
 * 2019 - The Blu-ray season box set The Collection: Season 23 was first released by BBC Studios.