At the beginning of their writing career, Bain and Armstrong wrote for the Channel 4 sketch show Smack the Pony and the children's shows The Queen's Nose and My Parents Are Aliens.[3] They went on to create and write Peep Show, BBC One sitcom The Old Guys, and most recently Channel 4 comedy-dramas Fresh Meat and Babylon. They also wrote for the Radio Four sketch show That Mitchell and Webb Sound, starring Peep Show's two main actors David Mitchell and Robert Webb, and its BBC Two adaptation That Mitchell and Webb Look.