People would say to him, "When you finish a movie, did it come out as good as you thought it was going to?" Or, "Did it come out the way you intended it to come out?"

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.

"Sesame Street" was really the first kid's show that my dad did. He did a couple of TV specials that were targeted for kids before "Sesame Street," but really, it was, it's kind of going back to our roots, when we start to get adult. This show gets very adult sometimes, and that's because of the audience.

"Stuffed and Unstrung" started as a workshop, actually, classes within our company. We found that our puppeteers were not ad libbing as well as traditionally, Jim Henson Company puppeteers have. We're sort of famous for going off script a little bit and ad libbing.

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.

The show is probably 60 percent improvising and 40 percent not. So there's quite a bit of it that we do have prepared and that part of it, you have memorized and you've rehearsed and you're prepared, just like any show.

In many ways, I think it's easier in some ways, or it's more entertaining or more guaranteed to be entertaining than traditional improvising. Again, because you're not just you in your body.