When it actually aired, Star Trek was not exactly in the highest demand. Afterward, though ...
Paramount didn't realize it had a bona fide hit on its hands with Star Trek until it was too late. Or perhaps, if we're being honest, Paramount knew Star Trek could be more valuable dead than alive. After all, no new episodes meant no money to be spent on actors, sets or costumes. Syndication, though? That was worth spending money to advertise.
And that's precisely what we have for you today. Check out this ad fom March 24, 1969, in which Paramount is selling the show for syndication to whoever might be interested.
The ad went out months before the final episode, Turnabout Intruder, even aired. It's interesting to see this particular moment frozen in time. Kaiser Broadcasting had already purchased syndication rights after the first season had completed, which was part of why this ad went out at all. And shortly after the ad was released, WPIX in New York picked up the show as counterprogramming against the nightly news on the major networks of the day.
By 1972, Star Trek was on in over 100 American cities and over 60 countries around the world.
This ad, though. This is the moment right before Star Trek became the show that wouldn't die.
(via Trek Core)