I can't think of a modern series that started out with such an interesting premise that turned into a complete dud do to the horrible acting, the unnecessary forced artificial drama, the 1 dimensional characters, and the fact that most of the season ignored the main point of the series, the dome. They must have gone really cheap with the writers. The Irwin Allen reference above is a good one because he had a habit of destroying his series with the same sort of nonsense after starting off pretty good. Go watch the 3rd season of Voyage to the Bottom of the Sea for an example.
I stuck through it mainly to get some answers. Amazing this turd of a TV show couldn't even come up with that since not one single question was answered except possibly that aliens, who are unable to figure out English, are behind it. Aliens after doing the amazing thing of making 1st contact with another species, disappear again after speaking a couple of sentences. Unbelievable. Bleh.
I'm done with it. Given that the idiots at CBS have renewed it, I won't bother with it next summer.