Whether you're fanatical about film or crazy about comedy, this is the chance to test your knowledge of the entertainment industry. In the studio, groups of surfers, bankers, dustmen, bankers, entertainers, celebrities and ladies from the Women's Institute compete to see who has the upper hand. As usual Phillip Schofield is on hand to reveal which of the groups have the greatest powers of recall, while Anne Robinson fires the questions.
Viewers can take part digitally via the red button, online, with their mobile, with pen and paper or - for the first time - with Wap phones. The programme continues after the news at 10.05pm.
Director Julian Smith ; Series producer Alexandra Henderson Videoplus code for 8.15-11.l5pm (non-PDC) www.bbc.co.uk/testthenation