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.
* 2022 - The Blu-ray box set The Collection: Season 22 was released by BBC Studios.
* 2022 - Dr. Who and the Daleks was released on Blu-ray by Studio Canal.