The first show that my dad and my mom did together was for, was a comedy series, a short form that went in the middle of late-night news, and then through all of their career, it was always the "Ed Sullivan Show," it was a variety act, my dad was on the "Jimmy Dean Show" for a few years.

The challenge is, well, there's a huge challenge, which is when you're improvising, you're meant to sort of clear your mind completely, just be open and funny, and paying, you know, paying attention.

We took a show to the Aspen Comedy Festival, called "Puppet Up" at that point, and in Aspen we just did three shows, and in Aspen, there was a producer from the Edinborough Fringe Festival, who said, "Please come to Edinborough."

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.

It's really great to do one piece, "I've Grown Accustomed To Your Face," my dad developed in 1956, when he was 20 years old, and it's great to do that piece again now and see that it still really works as well as it ever did.

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.

And if the audience is in a kind of naughty, raunchy mood, then they're going to make naughty, raunchy suggestions and then we take them and we do the scene anyway, and that's part of the fun.