The Changes: The Cavern
The tenth and final episode of The Changes airs on BBC1, adapting the novels of Peter Dickinson into a ten-part television serial starring Vicky Williams and Keith Ashton. Oscar Quitak (Brazil) guest stars. The series was filmed in 1973, but has been held for broadcast until 1975; an entire generation of young viewers will go on to consider the short series a seminal event in UK genre TV.