Curious. That means I may never have seen the actual pilot, but the “reedited” version that was the first aired episode. I see the unaired pilot is up online:
www.hulu.com/watch/148
I do remember reading that Roddenberry was invited by CBS to pitch Star Trek (this around 1964), but the executives were really trying to find out what his idea was and steal parts of it to do their own sci-fi series (which, of course, became “Lost In Space”).
Star Trek did exactly the same thing as Lost in Space did years earlier, took the pilot and added new scenes with new characters reworking the plot (the trial of Spock) creating the only two part Star Trek, The Menagerie with the teenage Jesus, Jeffrey Hunter, .
Its fun to watch the pilot first then the show episodes, to compare them, the Dr Smith evil plot with the robot being programmed to kill really spiced it up.
Again, me and my siblings as kids were wired up every show in suspense,