Junior Mastermind Episode Rating Graph

Britain's young brain boxes get to prove their worth in the infamous black chair. In the week's first neat, John Humphrys grills children aged 10 and 11 on the topics of Formula One (1990-2004), sharks, the life and reign of Queen Victoria and Anthony Horowitz's Alex Rider novels.

Four pre-teen brain boxes tackle the works of Jane Austen, the Eurovision Song Contest, Albert Einstein and the history of the Grand National (1990-2004).

Subjects in tonight's heat are the history of the VW Beetle, the Harry Potter novels by JK Rowling, Liverpool Football Club (1995-2004) and the Girls in Love series by Jacqueline Wilson. With John Humphrys.

Tonight's specialist subjects are the life of Mozart, the Noughts and Crosses series by Malorie Blackman, British Olympic medallists (1948-2000) and The Simpsons.

Subjects tonight in the last of the heats before tomorrow's grand final are dinosaurs, Vincent Van Gogh, the Indian cricketer Sachin Tendulkar and the Tudors.

Are you an authority on James Bond villains? Or an expert on the life cycle of frogs, perhaps? Test your grey matter against tonight's five young quiz-show boffins, whose other specialist subjects include the book and film versions of Meg Cabot's The Princess Diaries and the geographies of Australia and western Europe.