Mark Benton, Alex Jones and Shivi Ramoutar answer questions and take on the machine in an attempt to win £20,000 for their chosen charaties. Will anyone triumph?

Presenter AJ Odudu, broadcaster Vanessa Feltz, and footballing legend Tony Cottee put their wits to the test to discover if any of them have what it takes to master the machine.

Actress Fay Ripley, comedian and writer David Baddiel, and actress and singer Kate Robbins put their wits to the test to win £20,000 for charity.

Football legend John Barnes, singer-songwriter Charlotte Church, and comedian Stephen Bailey put their wits to the test to discover if any of them have what it takes to master the machine.