Plot: Tonight's Semi-finalists are from Bournemouth, Wallasey, Bangor (Wales), and Glasgow. They are: IVOR JEFFERY-MACHIN, Anglican Priest, Dutch 17th-century painting NOEL FAGAN, former sales manager, The two World Wars, 1914-18 and 1939-45 ANTONY CARR, university lecturer, Hundred Years' War FRANCIS LAMBERT, university lecturer, Brazil since Independence - 1822