Quatermass

Dr Who collaborators Mark Gatiss & Stephen Moffat, academics Una McCormack & Claire Langhamer and Matthew Kneale join Matthew Sweet to celebrate Nigel Kneale's groundbreaking 1953 BBC TV sci-fi serial The Quatermass Experiment, which spawned two late 1950s sequels and an ITV final run in autumn 1979.

Producer Torquil MacLeod.