Director: Rodney Bennett Producer: Philip Hinchcliffe Broadcast: 22 February – 1 March 1975
In the autumn of 1974, the first serial to be recorded under the tenure of new producer Philip Hinchcliffe was unusual in a number of respects. The Sontaran Experiment would be the series’ first two-part story since The Rescue in 1965, and it would also be the first serial to be taped (as opposed to filmed) entirely on location, with no interiors whatsoever.