27 January (releases)

* 1968 - Episode six of The Enemy of the World was first broadcast on BBC1.
* 1968 - Part five of the TV Comic story The Witches was first published.
* 1973 - Episode one of Carnival of Monsters was first broadcast on BBC1.
* 1973 - Part two of the TV Action comic story Deadly Choice was first published.
* 1979 - Part two of The Armageddon Factor was first broadcast on BBC1.
* 1979 - Part seven of the TV Comic story The Metal-Eaters was reprinted as a Fourth Doctor story.
* 1984 - Part two of Frontios was first broadcast on BBC1.
* 1996 - Episode two of The Ghosts of N-Space was first broadcast on BBC1.
* 2010 - DWDVDF 28 was first published by GE Fabbri Ltd.
* 2011 - DWA 202 was first released by BBC Magazines.
* 2013 - The Doctors Revisited - First Doctor was first broadcast on BBC America, followed by a rebroadcast of the First Doctor story The Aztecs.
* 2016 - Part two of the Doctor Who: The Tenth Doctor comic story Medicine Man was first published.
* 2016 - TCH 5 was first released by Hachette Partworks.
* 2020 - The Collection: Season 26 was first released on Blu-ray.
* 2021 - The Diary of River Song: Series Eight was first released by Big Finish.