If all you've seen is clips then most of those shows are going to suck. They're not a collection of one liners, they're a (usually) self-contained story with multiple jokes that build up over the episode (or more rarely across episodes). Of them I'd say South Park is the funniest, but it's also one you really need to watch soon after an episode airs because they hit the events that are ongoing at the time with a satirical take.

Moreover why the fuck are you calling shows you admit to having never watched unfunny? You can't judge a show you've never seen, that's not how it works. You're just an asshole if you do.