Episode 12

This is the final competition of the first-round heats, and apart from tonight's winner, the four best losers over the 12 heats will become known, moving forward to take their place in the special runners-up semi-final. Contenders: OLGA KEVELOS, licensee, Genghis Khan

PAUL BOLITHO, librarian History of British Methodism ANTHONY TOOHER, teacher, Life and works of Sir Edward Elgar

MICHAEL WALKER, civil engineering technician, Alaska and the Yukon Territory