27 April (production)

1967 - Pre-filming for The Evil of the Daleks continued at Ealing Studios. (TCH 10)
 * 1966 - Pre-filming for The Savages began at Ealing Studios. (TCH 8)
 * 1970 - Director Douglas Camfield suffered a minor heart attack during the studio recording of episode one of Inferno, ending his involvement on that serial. Producer Barry Letts had to immediately take over as director.
 * 2005 - Recording for Scaredy Cat took place at The Moat Studios.
 * 2010 - Recording for Project: Destiny took place at The Moat Studios.
 * 2015 - Recording for Foreshadowing and The Man Who Wasn't There took place at The Moat Studios.
 * 2018 - Recording for  The Eleventh Doctor Chronicles and Ravenous 2  took place.