Yeah, there is nothing like watching a string of shows on Hulu (over whatever time period) and getting the same ads every time. It really makes you start to hate that product a bit. I usually pick the front-loaded ads if i have a choice though, but I have noticed recently that they are buggy and don't show correctly for me anymore (they give the black screen with the adblock message for 45 seconds, or whatever). Regular ads work properly though.
As for Chuck, yeah, I think it is a good show. It is on the bubble for renewal (again), but hopefully NBC, after moving Leno back to 11:30pm, won't have to much trouble renewing. I wish they had kept Kristen Kruek around for a few more episodes though; a good cat-fight with Yvonne Strahovski would have been amusing to me.
The only real gripe I have about Chuck is how they are beating the "oh no, I don't like guns, I can't be a real spy" thing to death. I know it is part of his character, but yeesh, it is getting old to me. Maybe it is just me, but I always find myself thinking "Oh, just shoot him and get it over with, already!". Either they let him shoot someone, or they all agree that his intersect-powered martial arts skills are sufficient to the task. Just as long as they stop belaboring it, I'll be happy. /rant