Big Bang Theory. I'm lucky if I manage a small laugh once during the duration of an episode, but when we watch it in Science class, I can bare it. It's a pretty stupid show that's often mistaken for being clever, but it's not terrible.
Two and a Half Men AFTER Charlie Sheen left. The show was okay when he was still on, but Ashten Kutcher has just fucked it up the ass by not being the least bit entertaining. The last good thing he did was That 70s Show, and even that got shitty near the end.
Planet Sheen. Jimmy Neutron was at best just okay. It ended in 2006. The time to make a spin off involving a character ISN'T four years after the original has died.
Napoleon Dynamite. Just read that again. Napoleon Dynamite as an animated cartoon. Enough said.
What I Like About You. Amanda Bynes is not now, nor was she ever, nor will she ever be, a talented actor. She's not funny, she doesn't evoke emotion, she doesn't entertain anyone, and everything she's come into contact with has ended up being shit. The fact that they gave her another show after her first one is ridiculous.