I enjoyed Fringe from the beginning but, let's be honest, in season 1 the storyline was pretty much all over the place. Things seemed a lot more structured in season 2 but, at least to me, the show still felt a little unbalanced at times. But now, in season 3, all the background is laid and the show seems to have really found itself.
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Spoiler for Fringe 3x04 )