Well, kind of. I watched some of Season 1 back in 2010 and some of the Season 3.
Maybe it's because the series is coming to a close, with my sudden interest and I can go back. There's some things I know, more things I don't know. I see Alison is still alive and she doesn't seem like the total B she was "introduced" as. I'm just wondering if this show covers up its tracks well...like will things be resolved..?
The show is basically 1000 questions/mysteries....then 1 'answer' that really just raises more questions causes more mysteries. So somethings are resolved, but there is a lot of things that were not explained.
The very last eps are going to be out soon, so we'll know for sure if they actually answer questions. There are things from s1 that seem to be still unanswered. They apparently expect the audience to piece the puzzle together.
But yeah the format of the show is, first ep of the season set up plot lines...middle eps filler, last ep some answers mostly more questions.