'Where is Everybody?' was the first episode of which cult TV show?

"Where Is Everybody?" is the first episode of the American television anthology series The Twilight Zone. It was first broadcast on October 2, 1959.

A man finds himself alone on a dirt road, walking towards a diner. Inside he finds a jukebox playing loudly, and a pot of hot coffee on the stove, but there are no other people. He inquires for some breakfast, but no chef or waitress is to be found. He is dressed in an Air Force flight suit, but he does not remember who he is or how he got there.

After leaving the diner, he walks to a nearby town called Oakwood. The town seems deserted, but everywhere the man goes, he seems to find proof that someone had been there recently: food is cooking on a stove, water dripping in a sink, and a cigar is burning in an ashtray. He grows more and more unsettled as he wanders through the empty town, looking for someone—anyone—to talk to, all the while having the strange feeling that he is being watched. He even mistakes a mannequin sitting in the cab of a delivery truck for a live person.

In a soda shop after talking to himself he idly spins racks filled with paperback books until he comes to an already spinning rack filled from top to bottom with the same book: "The Last Man on Earth, Feb. 1959".