Overview: The University of Bradford is host tonight, as four more first-round winners compete in the third semi-final of Mastermind. William Hamill-Keays (chartered engineer) The Crimean War Hendy Farquhar-Smith (teacher) Life and works of Sir David Wilkie 1785-1841 Timothy Stewart (translator) Life and works of Beethoven Donald Crerar (actor) European history 1914-1945