19 April (releases)


 * 1969 - Episode one of The War Games was first broadcast on BBC1.
 * 1969 - Part three of the TV Comic story Eskimo Joe was first published.
 * 1975 - Part one of Revenge of the Cybermen was first broadcast on BBC1.
 * 1975 - Part four of the TV Comic story Return of the Daleks was first published.
 * 2002 - Part one of "Death Comes to Time" was first released online.
 * 2006 - The Doctor Who Adventures comic story Mirror Image was first published.
 * 2007 - Sting of the Zygons, The Last Dodo and Wooden Heart were first published by BBC Books.
 * 2008 - Planet of the Ood was first broadcast. Later, Oods and Ends aired on BBC Three.
 * 2012 - The Doctor Who Adventures comic story Doomland was first published.
 * 2017 - Alien Heart and Dalek Soul were first released by Big Finish Productions.
 * 2017 - Part two of Sharper Than a Serpent's Tooth was first published in 10DY3 4.