Imagine extras from 'The Muppet Show' doing 'Whose Line Is It Anyway?' That's the concept behind Brian Henson’s long-running 'Puppet Up!' improv comedy show.

That’s exactly what Brian Henson was going for when he started “Puppet Up! Uncensored,” a live comedy improv show that features Jim Henson Company puppets doing things no respectable Muppet would ever ...

Although The Muppet Show was set in a New York theater, the series was actually shot in Britain since no American production companies bought into the idea. But Sir Lew Grade was willing to give Jim ...