David Walliams, Max Whitlock, Helen Skelton & Jimmy Carr

Not satisfied with taking over the world of children's books and televised talent shows, David Walliams invades the pitch of the chaotic sports panel show as this series' final guest host. Joining David this week will be gymnast and five-time Olympic medallist Max Whitlock, Countryfile presenter Helen Skelton and dog-toy-laugh comedian Jimmy Carr.