4 July (releases)


 * 1964 - "Hidden Danger" was scheduled to air on BBC1, but was postponed to the 11th due to an extended episode of airing in the same time slot.
 * 1970 - Part four of the TV Comic story The Fishmen of Carpantha was first published.
 * 1994 - The Visitation and Black Orchid were released together on VHS, as was Destiny of the Daleks.
 * 1996 - DWM 241 was first released by Marvel Comics.
 * 2007 - Robot was released on Region 4 DVD.
 * 2008 - The Baktek Illusion was first released online.
 * 2013 - The audiobook version of Doctor Who and the Leisure Hive was first released by BBC Audio.
 * 2016 - Broken was first released by Big Finish.
 * 2016 - Ghost Light was first published by Obverse Books.
 * 2019 - The audiobook version of Doctor Who and the Enemy of the World and Doctor Who at the BBC Volume 9: Happy Anniversary were released by BBC Audio.
 * 2023 - The universe's greatest assassin has just 24 hours to escape Death and find the Doctor - where will Doom's Day take her next? was released by the BBC on Twitter, Facebook, and Instagram.