Regarding Twilight Zone, I'm ancient enough to dimly recall seeing the original broadcasts of "Eye of the Beholder" and the story with Lois Nettleton in which the Earth is slowly coming closer to the sun. I've been checking out the episodes the last few days, and the surprise endings in some cases (in the eps I'd never seen, that is) are sort of predictable. But they were probably "Wow" surprises when they were new. One story, written by Serling himself, with Inger Stevens startled me: It looked like it had been shot on videotape, like a soap opera, rather than on film.
As for the 1970s Odd Couple, I still recall great moments from it. Randall's Felix was a little more of a caricature, more prissy, than Lemmon's (or, I'd guess, that of the stage original, Art Carney). But funny!
Murray (the sheep-faced cop, over lunch with Oscar, as they discuss Felix's ex-wife): "Yeah, I know. Before my wife met me, she dated some real dogs."
Oscar (deadpan): "Eat, Murray. Eat."
Felix (as Oscar is about to toss Felix's parrot, whom they think has passed on, down the incinerator chute): "Wait! Shouldn't we say something?"
Oscar (who has always hated the bird): "Look out below!"