I think it came on every saturday. Back when you only got 3 channels on tv. NBC ABC and CBS.
The original star trek had a limited audience and the majority were very educated. My dad loved that show. He was a biology prof.
He worked for a major computer corp. Why do you ask?
What did your dad do for a living?
Can't say that I am...Dad had it on all the time when I was a kid. So I know a few of the characters...