I think part of it is the fact that they were kind of the first of its kind - there weren't a lot of cartoons for adults. People forget at the time that The Simpsons started out, it was controversial - the fact that they said "hell" and "damn" in a cartoon was a lot. America was in an uproar.
Eric AndreI just grew up with it [The Simpsons]. The first season came on when I was 5, 6 years old, and the show evolved as I was growing up and got funnier and funnier and, by the time I was in 12th grade, they were at their funniest.
Eric Andre