The third episode of The Changes airs on BBC1, adapting the novels of Peter Dickinson into a ten-part television serial starring Vicky Williams and Marc Zuber. The series was filmed in 1973, but has been held for broadcast until 1975.
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Also of interest...
The Evil Touch: Dear Beloved Monster
December 16, 1973
Voyage To The Bottom Of The Sea: The Mechanical Men
March 13, 1966
Buffy The Vampire Slayer: Checkpoint
January 23, 2001