Probably though, by the time I was 17, I already knew that I was probably going to go into film

And with puppets, especially in our company, we sort of demand a very high standard of puppetry, so it's a real technical skill.

This is certainly the raunchiest, if you use that word, raunchy. The roots of Jim Henson, though, was adult comedy.

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

I was already sort of mixing my science physics enthusiasm with entertainment and directing and puppetry.

So it's Rosemary Clooney - Rosemary? Rosemary Clooney, right? The singer? Yes. Clooney, doing, singing, "I've Grown Accustomed To Your Face," which is, you know, really a love song, but what we see on stage is we see one puppet that's got a ridiculous blonde wig on and she looks ridiculous, and next to her is a head that's just a piece of fabric with a pretty face on it.

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.