Definitely. Lost and Fringe got better each passing episode.

OTH died seasons ago.

Bones <333

Supernatural is just not as good as it use to be.

My top two only had one season each, and my third had 3, but I think they all stayed about the same level of awesome. =)

TVD. But my old favorite, Gossip Girl, got so much worse with time.

I have three favourties:
one tree hill was ruined after season 6 :(
gilmore girls got worse, although it was getting better right towards the end
brothers & sisters got better and better until it was cancelled

#1 show in America? Yeah, I'd say it's gotten better. :P

But I still love it

I think we all agree on the fact that OTH is worse than ever since the end of season 6. It's still my favorite TV show and still like watching it, but it's really getting worse.

Parks and Rec definitely got better with time

With Greys Anatomy it changes all the time. One season is eatter, the next is weird...for example 2 and 5 were great, 4 and 7 not so much...

I think it gets better with every viewing :) ("24")

Supernatural.

same as xochuckandblair.

Degrassi is kind of a weird example. I'd say seasons 1-4 were excellent and definitely the best. But then seasons 5-7 were hit or miss and then 8 & 9 were mostly bad. But seasons 10-12 were amazing and almost as good as the first four. Season 13 was complete shit but season 14 is a big step up. So overall, the quality differs by season.