Really looking forward to the new Twin Peaks, it's just a case of finding the right time to get stuck into it.
Persuaded wifey to watch the originals on DVD a few years ago, and while a touch dated I was stunned at how powerful a series it still was (having not watched it for 20-odd years).
I think this is a big factor as to why Curb can be an acquired taste: it lacks the rhythm associated with a lot of mainstream comedy due to the improvisation, so many won't click with it due to it not staying 'on-beat'.
Personally, I kind of love the scenes which don't hit; it's that light and shade which makes the scenes that do hit even more golden. So many classics, but the doctor/dentist and children's party episodes immediately spring to mind, and are amazing.