4 April (releases)


 * 1964 - "Assassin at Peking", the seventh and final episode of Marco Polo, was first broadcast on BBC tv.
 * 1970 - Episode three of The Ambassadors of Death was first broadcast on BBC1.
 * 1970 - Part one of the TV Comic story Insect was first published.
 * 2007 - The Doctor Who: Battles in Time comic story Lonely Planet was first published.
 * 2008 - Exit Wounds was first broadcast on BBC Two. Later, Avulsion aired with it.
 * 2010 - Liberation was first broadcast on Disney XD, six months after its original, planned broadcast, 9 October.
 * 2010 - The Eleventh Hour was rebroadcast on BBC Three.
 * 2012 - DWDVDF 85 was first published by GE Fabbri Ltd.
 * 2013 - Summer Falls was first published by BBC Digital.
 * 2013 - The Doctor Who Adventure comic story The Mystery of the Mould was first published.
 * 2017 - The Jago & Litefoot Revival act one was first released by Big Finish Productions.
 * 2017 - The graphic novel The Malignant Truth was was first published by Titan Comics.