20 June (releases)


 * 1964 - "Strangers in Space" was first broadcast on BBC1.
 * 1970 - Episode seven of Inferno was first broadcast on BBC1, concluding season 7.
 * 1970 - Part two of the TV Comic story The Fishmen of Carpantha was first published.
 * 1991 - Timewyrm: Genesys was first published by Virgin Books.
 * 1994 - DWCC 22 was first published by Marvel Comics.
 * 1996 - GodEngine and Killing Ground were first published by Virgin Books.
 * 2005 - The Power of the Daleks was released on MP3-CD by BBC Audio.
 * 2009 - Worldwide Web: Part 2 was first released in Big Finish's Eighth Doctor Adventures Series 3.
 * 2011 - The Gunfighters and The Awakening were released together in the Earth Story Region 2 DVD box set.
 * 2018 - The Second Doctor: Volume Two was first released by Big Finish.