Fringe 4x17 (which I see Johnny has already mentioned).

Loving this season now - I was wary for the first half or so of it, but the last few episodes (pretty much from "Enemy of My Enemy" on) have been a good run.

I disagree with Johnny, though - I loved the Observer episodes.

And SPOILERS AHEAD FOR Fringe 4X17

YOU'VE

BEEN

WARNED

...

I'm very sad at the loss of Red Lincoln. He was one of my favorite characters, and until the last few episodes of the season, I really wasn't a fan of Blue Lincoln. Thankfully, I've grown quite fond of him, but I'll still miss (as I call him) Badass Lincoln.

Though I think it's funny that Blue Lincoln gets friendzoned by one Olivia, only to (probably) end up with a hotter Olivia.

I also think that the dynamic of the show will feel less ... weird now that we (presumably) won't have Blue Lincoln and Peter vying for the Top Blueverse Dude role. (I'm assuming that he's planning on staying Over There.)

...

END SPOILERS

So yeah, I still feel that Fringe has been pretty stellar, and hasn't "jumped the shark" yet. It's been remarkably consistent, with the exception of the first season (which is probably why the show never found a huge audience - it started out too rocky).

Anyway, Fringe 4x17 = 4 balls out of 5!