So that's the challenge, you have a big technical aspect of what you're doing whilst you're creatively trying to improvise.

he puppeteers really responded to it. Patrick Bistrow really responded to it, it's great fun to do improve comedy with puppets.

You get used to it, you look forward to the adrenaline of the stage fright before you go out.

There's an awful lot of scenes where we don't know what the scene's going to be about, we ask the audience, pick a place that the scene is happening, pick the relationship, tell us who they are, things like that.

The first big thing that I did with my dad was the bicycle sequence in "The Great Muppet Caper," where Kermit and Piggy are riding bicycles in Battersea Park in London and that was a complex marionetting and cranes driving through the park, it was a complicated scene, and I did that with my dad.

And it was a whole lot of fun, and in many ways, what we've done with the show is just taken that part of my early memories of visiting my dad, shooting with the Muppets, and taking that and making a show that's really an expansion of that and presenting a show that's all that.

We try to keep it a classy show, but it certainly is blue at times. And it all depends on the audience, sometimes we've have audiences that don't really want us to go too far in that direction.