The Great Hall of Hatfield Polytechnic is the setting for this week's Mastermind which involves four contenders from London and the south east. Roy Bailey (film producer) The life and times of John Hampden 1594-1643 Mary Hunt (retired nursing auxiliary) Silent films of the 1920s Helen Poole (housewife and freelance writer) The history of Hertfordshire 1360-1660 Christopher Gifford (bank officer) The life and times of Woodrow Wilson 1856-1924