Synopsis

Tonight, Mastermind advances to the semi-finals. The contest will be held at St Andrew's College of Education, Bearsden, Glasgow. Contestants include Henry Boettinger, a consultant and author, who will be quizzed on the life and work of Thomas Edison; Kenneth Gray, a retired schoolmaster, who will focus on Rachmaninov’s life and compositions; Steve Hall, a civil servant, whose specialist subject is Mark Twain; and Roy Bailey, a film producer, who will be tested on Winston Graham's Poldark no