I’ll have to disagree with people about the show making even less sense than before. Maybe it’s because I did a “marathon” viewing of seasons 1-3, having never seen them before. When I got finished with that, I had to catch up 1/2 of season 4 online. Then got to finish the rest of season 4 on the Tele. Now I started watching season one January of '08 (or whenever the writer’s strike started and my other fav shows were put on hold). So I watched 4 whole seasons within like 4 months or so. It gets addicting when you know you can watch the next episode right away.
Anyway, my friend kept asking “so did you notice” (she’s been watching from the beginning and following the stuff online). I was like “yep”. I think it’s because I watched it all together, with no gaps.
I really see Season 5 as filling in some missing pieces. There have been a lot of AHA! moments.
Understandably most people don’t have the time to stay up late and such to re-watch from the beginning. So I can understand how it is not piecing together, instead adding extra lost pieces.
I’m really enjoying Season 5 so far, though I have to say I like seeing them online/on DVD better…I don’t have to be left hanging if i don’t want to.

The suspense is killing me!