He is most closely associated with the science fiction series Doctor Who, having directed four serials for the programme: The Curse of Peladon (1972), The Three Doctors (1972), The Monster of Peladon (1974) and The Hand of Fear (1976).
A potentially divergant continuity established by Big Finish's audio plays has the Third Doctor returning to the planet again in the Companion Chronicles story The Prisoner of Peladon, which features David Troughton reprising his role as King Peladon.
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