31 January (releases)

* 1970 - Episode one of Doctor Who and the Silurians was first broadcast on BBC1.
* 1970 - Part three of the TV Comic story The Arkwood Experiments was first published.
* 1976 - Part one of The Seeds of Doom was first broadcast on BBC1.
* 1976 - Part one of the TV Comic story Virus was first published.
* 1980 - DWM 17 was released by Marvel Comics.
* 1981 - Part one of The Keeper of Traken was first broadcast on BBC1.
* 2003 - Rip Tide was first published by Telos Publishing.
* 2007 - DWA 22 was first released by BBC Magazines.
* 2008 - DWA 49 was first released by BBC Magazines.
* 2008 - Step Back in Time aired on BBC Three.
* 2011 - The DVD box set K9: Series 1: Volume 1 was released in Region 2.
* 2011 - The Mutants was released on Region 2 DVD.
* 2013 - DWA 305 was first released by Immediate Media Company London Limited.
* 2013 - Burning with Optimism's Flames was first released by Obverse Books.
* 2014 - Toby Hadoke's Who's Round 39 was released online.
* 2015 - Liberating Earth was released by Obverse Books.
* 2017 - The World Beyond the Trees was first released by Big Finish Productions.
* 2018 - 10DY3 13 with part 3 of comic story The Good Companion was first published by Titan Comics.
* 2019 - The Revisionists was first released by Big Finish Productions.