Twilight Zone origins

Fans thought Rod Serling invented the term "Twilight Zone." As a matter of
fact, so did Serling. He'd not heard anyone use it before, so he assumed
he'd created it. However, after the hit TV show debuted in 1959, Serling was
informed that Air Force pilots used the phrase to describe "a moment when a
plane is coming down on approach and it cannot see the horizon."

http://www.bigwacko.com/tvfacts.html

Don't know if this has come up before? I ran across this "fact" looking for
something else.

--
Montblack
"I like to watch"