Hosted by John Humphrys, Britain's toughest quiz invites four of the country's cleverest brains to take the lonely walk to the black chair where they will battle it out for the title of Mastermind, 2004.

This programme's specialist subjects are: The Department of Guadeloupe and Its Dependencies; The Moody Blues; Life and Work of Mary Anning of Lyme Regis; Aircraft Carriers from 1912. Show less