This Week in USA
The Trial of a Time Lord (The Mysterious Planet): Part Three (7A3)
Last updated 22 February 2026
7:00pm-7:30pm EST (00:00 GMT) < > « »
Retro TV (adverts during broadcast)
Featuring: Colin Baker, Nicola Bryant, Lynda Bellingham, Tom Chadbon, Michael Jayston, Tony Selby, Joan Sims
With the black light converter destroyed, the Doctor fears for the planets safety and needs to find the Secrets of the Sleepers and discover why they are there in the first place.
Synopsis Source: RetroTV listings
Broadcast Source: Retro TV