A guy at work said I should watch Seinfeld, and I did a couple episodes, didn't get it at all. Later I watched some reruns and started to somewhat like it, I'd watch when "bored" (and not posting here). More recently, I will flip to some rerun and watch 5 monutes and think "Meh". Some aspects were quite good, many were not, kind of like the old SNL when some things were actually funny and clever.
The main rerun the wife and I like is Law and Order.