Nowadays occasionally one comes along that I like, but then they move it around in the schedule (or it gets preempted by a bunch of pituitary cases playing with a toy) and then the actors begin to demand kings ransoms simply for being in a popular show, and then they inevitably run the show until they have driven it into the ground and it becomes a mere shadow of its former self, a good case in point is "The Big Bang Theory." Great show the first few seasons...now they are just finding different ways to tell the same jokes over and over.
I thought Seinfeld made a great decision when he quit producing the show while they were still on top.