I'm re-watching season 2 of "Cheers" as I write this (Diane is my favourite character). The show really stands the test of time. In spite of (sometimes deservedly, but mostly just) mean-spirited jokes at Diane's expense (usually by Carla), jokes about Coach's stupidity, jokes about Sam's stupidity/rugged exterior, etc., the show has a heart and an ensemble/community feel to it (the opening theme, Coach and Sam's history, the way everybody in the bar welcomes Norm when he walks in, Norm and Cliff's friendship, the regulars in the bar); the bottom line is, it's a very positive show. For a while there, after "Seinfeld", comedy shows were "Seinfeld" clones with dry, self-deprecating, disaffected humor (eg. "30 Rock"). Nowadays, there seems to be a revival of sorts of ensemble comedy shows with a heart (eg. "Parks and Recreation", "Community"). As a matter of fact, the creator of "Parks and Recreation" is a huge fan of "Cheers." And even the more snarky, less earnest shows like "30 Rock" use tropes seen on "Cheers", eg. on "Cheers", Diane had a cat named Elizabeth Barrett Browning; on "30 Rock"', Liz Lemon had a cat named Emily Dickinson. Can't pick a better show than "Cheers" to emulate.