In this series opener Josh Widdicombe is joined by Nish Kumar and historian Kate Williams, while Richard Osman is joined by Katherine Ryan and Gabby Logan.

In episode two, Josh is joined by Hugh Dennis and historian Suzannah Lipscomb and Richard is joined by Rebecca Front and Phil Wang.

In episode three, Josh is joined by James Acaster and historian Kate Williams, while Richard is joined by Ed Balls and Lauren Laverne.

In this special festive edition, Josh is joined by Jack Dee and historian Suzannah Lipscomb and Richard is joined by Martin Kemp and Liz Bonnin. In a twist to the usual format, different names are discussed, all with a link to Christmas. So expect fiendish facts about everyone from the baby Jesus to Noel Edmonds!

In episode six, Josh is joined by Miles Jupp and historian Kate Williams and Richard is joined by Sally Phillips and Roisin Conaty. Cue lots of comic banter, funny facts and unusual stats, as the two teams vie to outdo the other.

Josh is joined by Adrian Chiles and historian Suzannah Lipscomb, and Richard is joined by Sara Pascoe and Anita Rani.

In the final episode of the series, Josh is joined by Tom Davis and historian Kate Williams and Richard is joined by Robert Peston and Aisling Bea.