It is like football with coaches, like, 'We're only going to think about the next game.' It is really true, all you think is, 'Okay, we have to make a good next episode.'

Do goofy stories make people nice? What if, in their goofiness, these stories somehow inspire that in the right way. Is that a social good?

I think the neoatheists have set atheism back a few decades. And I'm a self-described atheist.

If you're working with a band and you really want to work them into the episode, you've got to say to them, "Look, we need you around every day and on Tuesday night all night because we need you to do voices as we're changing stuff." We do the show so quickly, and you just can't get bands to do that. It's not really fair.

Even celebrities, most people have a sense of humor. Most of the people we meet who we've done on the show, like it.

Sometimes we come up with something great, but a lot of times it just feels like work.

We've had musical stuff in the show [South Park] forever. That's mostly because Trey's a big musical fan, and he's a great songwriter. He's been writing songs his whole life. So since the beginning, we've always put a lot of musical moments.