Used to watch reruns of Dobie Gillis back in the 80s when I first got Cable in my apartment. Never knew that Gilligan was a beatnick before he was lost on that island.
Current is easy, Curb Your Enthusiasm, or for non pay TV, Modern Family.
Classic not so easy of course. Is MASH considered a sitcom? It's probably my #1 show overall. For a definite sitcom, Seinfeld. Many of the older one's I grew up with don't hold up for me, with exceptions of course. Taxi and Cheers get a high honorable mention.
Love Dick Van Dyke. A great show. My kids love this show . But they never slept in the same bed. That might have been Bob Newhart from the 1970's.I’m surprised no one has mentioned Dick Van Dyke, which I still find funny after all these years. And wasn’t it the first show to show a couple in bed together (though both in pajamas)?