I'll always recommend Venture Bros. and Futurama. Especially the first 4 seasons.
Rewatching Venture Bros. in order after only having seen it on tv years ago aired out of order makes a massive difference, too. I didn't realize how many episodes I'd seen were really from earlier seasons.
I still like the Simpsons. Newer stuff isn't as good, but it's still better than most tv shows
I know it has a cult following, but in case there are others who are like me: I had hard time getting into King of the Hill when it aired. I'm really glad I gave it another shot. Most episodes are solid with great character moments, and a handful are right up there with the best of Simpsons and Futurama.
King of the Hill is definitely an acquired taste. Some episodes are easy to bounce off of, but after a few you might find yourself enjoying it. Good suggestion!