Comedies:
Yes, Minister. Relevant 30-plus years on. Here's a bit about push polling, before they called it by that term:
Early Seinfeld, back when it was a show about how a stand-up comedian gets his material and before it became "a show about nothing".
Non-comedies:
The Prisoner
The Twilight Zone
And, for something completely different, 80s Pyramid. One of the great game shows ever devised. Although things could get funny when a clue-giver got desperate: