Classic Doctor Who "New Beginnings" trilogy which includes three series - "The Keeper of Traken", "Logopolis", amd "Castrovala" (story numbers 115, 116 and 117).
RREGENERATION: These are Tom Baker's final episodes as the Fourth Doctor and the first appearance of Peter Davidson as the Fifth Doctor.
Staring Tom Baker as the Fourth Doctor, Peter Davidson as the Fifth Doctor and Anthony Ainley as the Master.
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