Andy Burnham is going where no UK Prime Minister has gone before: Gogglebox. He'll be joined by Mayor of Liverpool Steve Rotheram in the very near future, all in the name of Stand Up To Cancer.The special episode, packed with famous faces as well as Gogglebox regulars, will also feature Joe Lycett and the Sugababes.A Channel 4 spokesperson said: "Nothing is off limits as Gogglebox continues to celebrate the simple joy of watching television together."Related: Best streaming servicesThey added th