13 March (releases)

* 1965 - "Invasion" was first broadcast on BBC1.
* 1965 - The fifth part of the TV Century 21 comic story Power Play was first published.
* 1971 - Episode one of The Claws of Axos was first broadcast on BBC1.
* 1971 - Part four of Gemini Plan was first published in Countdown.
* 1975 - The novelisation of Robot was first published by Target Books.
* 1976 - Part seven of the TV Comic story Virus was first published.
* 1980 - DWM 23 was released by Marvel Comics.
* 1986 - The novelisation of The Twin Dilemma was first published by Target Books.
* 1986 - DWM 111 was released by Marvel Comics.
* 1997 - DWM 250 was released by Marvel Comics.
* 2000 - The Invasion of Time was released on VHS.
* 2008 - DWA 55 was first released by BBC Magazines.
* 2008 - Something New aired on BBC Three.
* 2009 - From Raxacoricofallapatorius with Love was first broadcast as part of Comic Relief's Red Nose Day.
* 2012 - The video game Worlds in Time was first officially released by BBC Worldwide.
* 2012 - The Face of Evil was released on Region 1 DVD.
* 2014 - Starborn and Adorable Illusion were first released by Big Finish.
* 2014 - DWFC 15 was first released by Eaglemoss Collections.
* 2015 - Requiem for the Rocket Men was first released by Big Finish.
* 2015 - Toby Hadoke's Who's Round 111 was released online.
* 2019 - The Comic Strip Adaptations: Volume One was first released by Big Finish.