Three older sitcoms to watch.
Roseanne - While it took a massive dive in the later seasons, the first five seasons are incredible, with some of the smartest writing any sitcom has ever seen.
Married with Children - Amazingly funny, and rarely missed. While it lost some of it's step in later seasons, it never took a massive dive.
King of the Hill - One of the best animated sitcoms ever, beaten only by seasons 1-8 of the Simpsons. Unlike the Simpsons, King of the Hill remained very consistent in it's quality from beginning to end.