Sorry about the time out...but here's my second rounder.
Twilight Zone (1959-1964)
Wasn't a hard choice, this is my favorite marathon show even though I have seen most of these episodes at least a bazillion times over the years...thanks to well, SciFi channel marathons! Sci Fi, social commentary...what's not to love?
Episode that to this day scares the beejeebies out of me is "Time Enough At Last" with Burgess Meredith. That was the epitome of loneliness and the depth of despair that resonated with me. The minute his glasses break? : shudder:
This actually was sorta a hard choice because I have another "must have" show I could have taken here. But I'll wait and hope it comes back to me. But TZ is too important to me to pass up.