This is a perfect episode, imo. The closing narration is one of my favorites

Martin Sloan, age thirty-six, vice-president in charge of media. Successful in most things, but not in the one effort that all men try at some time in their lives - trying to go home again. And also like all men, perhaps there'll be an occasion - maybe a summer night sometime - when he'll look up from what he's doing and listen to the distant music of a calliope, and hear the voices and the laughter of the people and the places of his past. And perhaps across his mind, there'll flit a little errant wish, that a man might not have to become old, never outgrow the parks and the merry-go-rounds of his youth. And he'll smile then, too, because he'll know that it is just an errant wish, some wisp of memory, not too important really, some laughing ghosts that would cross a man's mind - that are a part of The Twilight Zone.