23 November (releases)

23 November is most notable for being the de facto date for Doctor Who related anniversaries with the series first airing on this date.
 * 1963 - "An Unearthly Child" was first broadcast at 5:16 p.m. on BBC tv. Doctor Who was born.
 * 1964 - Part three of the comic story The Klepton Parasites was first published in the 676th issue of TV Comic.
 * 1968 - Episode four of The Invasion was first broadcast on BBC1.
 * 1968 - Part four of the TV Comic story Ice Cap Terror was first published.
 * 1974 - Part seven of the TV Comic story Lords of the Ether was first published.
 * 1983 - The Five Doctors was first broadcast on PBS. It was broadcast in the UK two days later.
 * 1987 - Part one of Dragonfire was first broadcast on BBC1.
 * 1987 - Encyclopedia of The Worlds of Doctor Who: A-D was first published by Piccadilly Press.
 * 1988 - Part one of Silver Nemesis was first broadcast on BBC1.
 * 1995 - DWM 233 was first released by Marvel Comics.
 * 1996 - Part six of the Radio Times comic story Ascendance was first published.
 * 2000 - Howe's Transcendental Toybox was first published by Telos Publishing.
 * 2001 - Time and Relative was first published by Telos Publishing.
 * 2001 - The audio story Primeval was first released.
 * 2002 - Foreign Devils was first published by Telos Publishing.
 * 2003 - The second segment of Doctor Who @40 aired on UK Gold, along with part two of K9 presents.
 * 2009 - The Judgment of Sutekh was first released by Magic Bullet Productions.
 * 2013 - The Day of the Doctor was first broadcast on BBC One and in theatres. In theatres, specially filmed cinema introductions preceded the showing. Immediately afterwards, Doctor Who Live: The Afterparty aired on BBC Three.
 * 2013 - The Five(ish) Doctors Reboot premièred on BBC Red Button.
 * 2013 - Norton's Regeneration was broadcast on BBC One.
 * 2016 - Silenced was first released by Big Finish.
 * 2017 - The Tenth Doctor Adventures: Volume Two was first released by Big Finish.
 * 2017 - Toby Hadoke's Who's Round 227 was released online.
 * 2017 - Doctor Who Fluxx was first released by Looney Labs.
 * 2018 - Space, Light, and Super Movers was released online.
 * 2019 - The Shadowman was first published by Candy Jar Books.
 * 2020 - Coding with the Thirteenth Doctor was released online.
 * 2021 - Lost Warriors was first released by Big Finish.
 * 2022 - Hidden Depths was first released by Big Finish.
 * 2023 - The Box of Terrors was first released by Big Finish.