Glad to see a few votes for Six Feet Under. The entire series is such an emotional roller coaster, the last 7 or 8 minutes is so beautifully done, I don't think it could have been executed better. I will totally admit I cried.
I will also throw in The Office's ending, I didn't see it mentioned yet. I know it's not at the end, but when Michael shows up, it's fantastic.
-Chrissi