Doctor Who: Lockdown!

Doctor Who: Lockdown! (also stylised Doctor Who: LOCKDOWN!, originally titled Who at Home ) was a project founded by Emily Cook from Doctor Who Magazine who proposed the idea to Doctor Who fans as a simulcast watch-along of the show's 50th Anniversary, The Day of the Doctor, worldwide as a way to pass the time in self-isolation due to worldwide outbreak of COVID-19. The story was shown on 21 March 2020. She added that if the concept gained enough popularity, she would arrange more watch-alongs.

For the first watch-along, Steven Moffat penned a short introductory skit, Strax Saves the Day, which was released on Twitter. The home-produced video starred Dan Starkey as Strax, represented on screen with a stuffed toy of the character, and featured the voice of Neve McIntosh as Vastra.

For the second watch-along Russell T Davies released a previously withheld prequel short story, Doctor Who and the Time War, which was released onto the Doctor Who website and depicted an alternate account to the Eighth Doctor's involvement in the Last Great Time War and the Ninth Doctor's origins, and a sequel audio story, Revenge of the Nestene, which was released onto YouTube and depicted the aftermath of the Nestene Consciousness's defeat at the hand of the Ninth Doctor.

Emily Cook tweeted the official tweetalongs of Doctor Who from 1963-96 were being hosted by TardisMonkey kicking off with the #GameofRassilon. A small scene with Paul Jerricho as the Castellan was filmed and released for the event

Associated releases
Several new short stories and webcasts were released to tie into the watchalongs, or the COVID-19 pandemic in general, some of them on a dedicated Doctor Who: Lockdown YouTube channel.