He’s back – and unstoppable. Gyles Brandreth can’t stop talking. The jumper-loving This Morning and Just a Minute star, who pops up on Pointless, QI, Would I Lie To You?, Sunday Brunch, and Celebrity Gogglebox, has been babbling since he was a baby, and in his hilarious new one-man show the award-winning raconteur is trying to work out why.