Gotham is supposed to be an origins story of sorts. It centers around Jim Gordon, when he was a rookie cop, and includes the different Batman characters while they are "growing up". I think it is an interesting concept that, if done right, will be really good. The first episode was actually done fairly well.
SHIELD kind of died before the Captain America tie in. It seemed like they were just dragging out the story, and I guess they were. It picked up after the movie launched, and it should continue to do well, now that it has ABC and Disney actually backing the project.