Four comedians accept the challenge of the famous black chair in a special edition of Britain's toughest quiz, in aid of Children in Need. Russell Kane, Jarred Christmas, Karen Taylor and Imran Yusuf answer questions from John Humphrys on their specialist subjects and general knowledge. The subjects are Fred Dibnah, The Life and Hong Kong films of Jackie Chan, The Life and Novels of Evelyn Waugh, and the Transformers cartoons.