4 June (production)


 * 1965 - "The Planet of Decision" was recorded at Riverside Studios 1. (TCH 5)
 * 1982 - Full scripts were commissioned for Mawdryn Undead.
 * 2009 - Recording for The Pyralis Effect took place at The Moat Studios.
 * 2019 - Recording for The Robots: Volume One took place at the Moat Studios.
 * 2020 - Remote recording for Out of Time took place.