The contenders in tonight's third semi-final are:
Bruce Watson
(antique furniture restorer) Life and works of James Brindley Helen Grayson
(technical writer)
Novels of Kurt Vonnegut Michael Clark
(plant and tool assistant)
Life and reign of Louis XIV (1638-1715)
Allan Draycott
(part-time lecturer)
History of test cricket since 1877.
With Magnus Magnusson from the Whitworth Hall at the University of Manchester. Director Andrea Conway Producer Peter Massey BBC Elstree