I saw some Trek in the first run, but I don't think I saw that one. I remember being at a friend's house on a Wednesday and rushing home so I wouldn't miss Star Trek. But like most homes at the time, we had one TV controlled by the patriarch of the family. And my dad was not
kind of sci-fi.
My real Trek experience started in the early 70s, when it was rerun in the afternoons and there were other kids like me at school who liked this kind of stuff.