Round Britain Quiz (or RBQ for short) is a panel game that has been broadcast on BBC Radio since 1947, making it the oldest quiz still broadcast on British radio. It was based on a format called Transatlantic Quiz, a contest between American and British teams on which Alistair Cooke was an early participant. Regional contestants have included Irene Thomas, John Julius Norwich, Fred Housego, Brian J. Ford, Patrick Hannan and Philippa Gregory. Current contestants include Marcus Berkmann, David Edwards, Adèle Geras, Stuart Maconie, Val McDermid and Paul Sinha.