The fact-busting comedy panel series is back as Lee Mack is joined by Ross Kemp, Bob Mortimer and Sara Cox to put a host of fascinating titbits to the test.

Lee Mack is joined by Rhod Gilbert, Ruth Jones and Richard Madeley to test-run random bits of trivia and some of the world's most startling facts.

Claudia Winkleman, Johnny Vegas and Joe Lycett join Lee Mack to put a host of fascinating facts and trivial titbits to the test.

Jason Byrne, Danny Dyer and Meera Syal join host Lee Mack to put more fascinating theories to the test.