Shaun Williamson, Jenny Frost, Sally Lindsay and Barry McGuigan put their knowledge to the test.
Nick Hancock, Jenny Eclair, Michelle Collins and Rufus Hound put their knowledge to the test.
John Thomson, Sue Cleaver, Carol Vorderman and Paul Ross put their knowledge to the test.
Phil Tufnell, Jennie Bond, Ulrika Johnson and Laurence Llewlyn Bowen put their knowledge to the test.
Alex James, Anne Widdecombe, Sara Cox and Eamonn Holmes put their knowledge to the test.
Joe Pasquale, Janet Street Porter, Mark Durden-Smith and Austin Healey put their knowledge to the test.