Mad Men Season 6.
I've loved this show for a long time. The Season 6 launch was appaling in my opinion, and quite a torture; a 1 hour and a half episode (1+2 in one, technically), which would be great normally, but it was so boring, and they showed so much crap I couldn't give less of a **** about.
Took me 3 weeks to shake off my disappointment and go into episode 3, but I liked it a lot more, and I'm glad it's back on track. More SCDP actual work going on, interactions between the old folks, decent intrigue about the good old characters... Yup.