No, if the teen is an older boy, he is usually no good in school, girl hungry and a sports star. If the teen is a girl, she is almost a slut.
The only sit-coms I watch are Simpsons, King of the Hill, Family Guy and American Dad. The only other thing I watch are the 3 CSIs, NCSI and Numbers and sports. (and Special Report and Hannity's America, also).
I assume you don't watch them with your kids for the most part. King of the Hill isn't bad, but the rest of them don't give any better values than any other sitcom on TV.