I think all of mine are related to how little patience the broadcast networks have with good shows. They move them around in the lineup, put them on months-long hiatuses and then drop them without reason or warning. It’s hard to get excited about anything on broadcast TV – because if it’s interesting at all, I can count on it being cancelled before I’m done with it.
I think *Deadwood*’s finale is the last big disappointment I can remember – mostly because I thought it was coming back, and it didn’t. Ditto with *Carnivale*. There was a _great_ cliffhanger there, then… _nothing_.