31 July (releases)

* 1965 - Part four of the TV Century 21 comic story The Penta Ray Factor was first published.
* 1971 - Part two of The Celluloid Midas was first published in Countdown.
* 1976 - Part six of the TV Comic story Counter-Rotation was first published.
* 1980 - DWM 43 was first released by Marvel Comics.
* 1997 - DWM 255 was first released by Marvel Comics.
* 2002 - The audio story Spare Parts and Comeback were first released by Big Finish Productions.
* 2007 - Timelash was released on Region 4 DVD.
* 2008 - DWA 75 was first released by BBC Magazines.
* 2013 - Prisoners of Time 7 was first published by IDW Publishing.
* 2013 - DWA 326 was first released by Immediate Media Company London Limited.
* 2014 - Engines of War was first published by BBC Books.
* 2014 - Status Update was first published by BBC Worldwide.
* 2014 - DWFC 25 was first released by Eaglemoss Collections.
* 2015 - Toby Hadoke's Who's Round 131 was released online.
* 2020 - Time Apart was first released by Big Finish.