The Prisoner, Twilight Zone and the first Star Trek were way ahead of their time. Not so sure I’d call the first two ‘Science Fiction’ though. More like reality tv and fantasy.
I remember I was a kid, maybe 11 or 12, when “The Prisoner: was on as a summer replacement. It was so far ahead of it’s time that even today you can watch it and it doesn’t seem dated. They did a remake I passed on, just now as good as the original. Patrick MacNee was really good writer, producer, and director as well as a very good actor and made that series work.