John Humphrys invites four more contenders to answer questions in the black chair. The specialist subjects in this heat are Sherlock Holmes, the Radio 4 sitcom Old Harry's Game, the Roman Army and Harold Wilson.
John Humphrys invites four more contenders to answer questions in the black chair. The specialist subjects in this heat are Sherlock Holmes, the Radio 4 sitcom Old Harry's Game, the Roman Army and Harold Wilson.
