We have 'Doctor Who' references on 'Futurama,' but we have a lot of science fiction references that I don't get; but in the staff we have experts on 'Star Trek,' 'Star Wars,' 'Doctor Who' and 'Dungeons and Dragons.'

I think 'Family Guy' and 'American Dad' have definitely staked out their own style and territory, and now the accusations are coming that 'The Simpsons' is taking jokes from 'Family Guy.' And I can tell you, that ain't the case.

Because good writing in a TV cartoon is so rare, I think the animation on The Simpsons is often overlooked.

I love the idea that we put in jokes the kids don't get. And that later, when they grow up and read a few books and go to college and watch the show again, they can get it on a completely different level.

I grew up completely overwhelmed by TV, and part of the reason why I have gone into television is as a way to justify to myself all those wasted hours of watching TV as a kid. I can now look back and say, 'Oh, that was research.'

I know for a fact, obviously, because my kids grew up watching the show, that there are some things they are introduced to from 'The Simpsons', and then later in life they see the thing we're parodying. My kids had not seen 'Casablanca,' and we'd done parodies of 'Casablanca.'

One of the things I would like to do is make up stories that I would have enjoyed when I was a kid. So, if I'm thinking about an audience, it's usually a younger version of myself.