15/30 Subjects are Tchaikovsky, the Evil Dead trilogy, Rafael Nadal and This Country.
14/30 Subjects include the 2012 Olympics, Hancock's Half Hour and John Wyndham novels.
13/30 Tonight's subjects include Marlene Dumas, Edward Thomas and Guy Burgess.
12/30 Tonight's subjects are Life on Mars, the Titanic, Barbara Castle and the periodic table.
11/30 Tonight's subjects include Kenneth Williams, Ada Lovelace and the Rugby World Cup.
10/30 In the tenth heat, subjects include Lyndon B Johnson, seabirds and children's TV.
9/30 Tonight's specialist subjects include The Sopranos, Jane Austen novels and Nick Drake.
8/30 The subjects are freshwater fish, Nick Cave, Scouting and Lin-Manuel Miranda.
7/30 The subjects are Joe Calzaghe, The Beach Boys, Joseph Stalin and the Gospel of John.
6/30 Specialist subjects include the Weimar Republic, Alex Higgins and UK cheeses.