The Twilight Zone: "The Encounter"

Just a heads-up: SyFy is currently airing all of the Twilight Zone episodes in order, including "The Encounter" which- due to its sensitive subject matter, has never aired in syndication. In other words, if you didn't see it when it first aired, or don't have it in some DVD collection, you probably haven't seen it.

https://en.m.wikipedia.org/wiki/The_Encounter

It will air 8AM CST.