You've never seen MASH? I grew up with it, actually, though I've never really fanned on it, and I do recommend it. I happened to watch a few episodes while I was visiting my sister in December (hotel room, MASH marathon on TV, nothing else to do) and it's one of those shows that's aged very well -- I kept forgetting that the episodes I was watching were written and filmed 30 years ago.

I don't think it reminds me that much of Scrubs except that they both excel at the blend of humor and pathos -- and of course there's the doctors thing, I suppose, though in MASH they were military doctors in a war zone, and the whole feel of the show is utterly different. MASH tended a lot more towards the bleak, black humor, where Scrubs is much more cheerful.