27 September (releases)

* 1965 - Part one of the TV Comic story The Ordeals of Demeter was first published.
* 1969 - Part four of the TV Comic story The Brotherhood was first published.
* 1975 - Part one of Planet of Evil was first broadcast on BBC1.
* 1975 - Part three of the TV Comic story The Sinister Sea was first published.
* 1980 - Part one of Meglos was first broadcast on BBC1.
* 1986 - Part four of The Mysterious Planet was first broadcast on BBC1
* 1989 - Part four of Battlefield was first broadcast on BBC1.
* 2007 - DWA 39 was first released by BBC Magazines.
* 2012 - DWA 288 was first released by Immediate Media Company London Limited.
* 2013 - The graphic novels The Chains of Olympus and Hunters of the Burning Stone were first published by Panini Books.
* 2014 -The Caretaker was first broadcast on BBC One.
* 2016 - Dot-to-Doc was first published by BBC Children's Books.
* 2017 - A Heart on Both Sides was released by Big Finish Productions.
* 2018 - A Small Semblance of Home was released by Big Finish Productions.
* 2018 - Day three of The 13 Days of Doctor Who aired on BBC America.
* 2021 - The Evil of the Daleks was released on Region 2 DVD and Blu-ray.
* 2022 - Destiny was first released by Big Finish.