Yes and No. I got into Fringe during S2 starting at the premiere and going back to the S1 finale and one before. But aside from an odd episode here or there in S1 I pretty much missed out on that. So I’ve been marathoning (between Classic Who, my DS9 Rewatch and other stuff) S1 during the past couple of weeks to put things in perspective. I think there’s a couple of S2 episodes I also missed out on as well. I’d say I’ve actively been watching it since the second half and haven’t missed a beat since then.