Shows Worth More Than One Binge

I can't think of anyone I know under the age of 70 that hasn't binge watched at least one series.  I've had some hazy days at work because I just had to get at least one more episode in before I crashed for the evening, but have you ever done this more than once?

Usually, once is enough for me.  I really enjoyed Breaking Bad, but I'm not sure I'll ever give it another run.  So far, the only show that's been worth a second group of binge watching sessions is Justified.  I just started watching it again a few days ago and I'm already most of the way through season two.  Apparently it's been long enough that I only remember the major plot points and actually got sucked in to an episode-after-episode watch fest.

What show have you gotten hooked on more than once?