I'm behind 3 stinking weeks with Castle because ABC hasn't put the episode from 3 weeks ago up on demand. It skipped right over it. Sigh. I have the two after it sitting on my DVR but can't watch because I'm missing THAT week.
And FOX is on my last nerve with not updating theirs. I'm missing a New Girl episode on there. :(
NBC has been rocking with their on Demand updates. Though I have a feeling that it's a Universal Studios thing because SyFy, USA and so on are also awesome with their updates.