Summary: Tom Baker makes his debut in an episode featuring a robot with daddy issues. The special effects department outdo themselves with bubble wrap on the camera lens, Benton is sergeant no longer and for some reason Sarah is dressed like a character from an Agatha Christie adaptation. Dr Sullivan finally makes an appearance and is promptly kidnapped in the TARDIS in a throwback to the Doctor’s preferred method of acquiring human companions.
Watch it because: Debut of an iconic Doctor.
Original Air Date: 28 December 1974 – 18 January 1975.
Doctor: Tom Baker.
Companions: Sarah Jane Smith (Elisabeth Sladen) and Harry Sullivan (Ian Marter).