I have loved the Golden Girls for years! I mean come on four old ladies living in Miami... you can't get any better then that.
The next show that just in the past year or two I have gotten into is The Gilmore Girls. I guess I have a thing for girly shows but this show is awesome. It's so witty and the dialog is fast and if you pay close attention you can hear some really funny stuff.
The last show I'll mention is The Middle. Chris and I just got into this show a few months ago and it's AWESOME. The family is amazingly funny and each have their own little quirks. You should totally check it out!