Keep a straight face!

Jimmy Carr hosts a show where comedians tell jokes but everyone tries their hardest not to laugh...

- NICK CANNON, HANNAH DAVIES, TESS LAMACRAFT, IAN MACEWAN, REBECCA MAHONEY

Ten of Britain's funniest comedians are challenged to spend time together without the hint of a giggle. That's the premise behind Last One Laughing, a reality-show format that's proved popular worldwide and now comes to the UK. It's hosted by comedian Jimmy Carr and his special guest, Roisin Conaty, who keeps a watchful eye on proceedings, looking out for even the slightest smirk.