13 January (releases)

* 1968 - Episode four of The Enemy of the World was first broadcast on BBC1.
* 1968 - Part three of the TV Comic story The Witches was first published.
* 1973 - Episode three of The Three Doctors was first broadcast on BBC1.
* 1973 - Part seven of the TV Action comic story Zeron Invasion was first published.
* 1979 - Part four of The Power of Kroll was first broadcast on BBC1.
* 1979 - Part five of the TV Comic story The Metal-Eaters was reprinted as a Fourth Doctor story.
* 1983 - DWM 73 was first released by Marvel Comics.
* 1984 - Part four of Warriors of the Deep was first broadcast on BBC1.
* 1992 - The Caves of Androzani and Robot were released on VHS.
* 1998 - Timelash was released on VHS.
* 2000 - DWM 287 was first released by Panini Comics.
* 2010 - DWDVDF 27 was first published by GE Fabbri Ltd.
* 2011 - DWA 200 was first released by BBC Magazines.
* 2011 - DWM 430 was first released by Panini Comics.
* 2012 - The Broken World and The Forest Shakes were first released by Radio Static.
* 2015 - The Romance of Crime and The English Way of Death were first released by Big Finish Productions.
* 2016 - The Isos Network was first released by Big Finish.
* 2016 - Truth or Consequences was first published to the Doctor Who Facebook page.
* 2021 - Coffee was first released by Big Finish.
* 2023 - CD version of Doctor Who - Series 13 - The Specials was released by Silva Screen Records.