Approximately 50 minutes, they were in 1 hour slots. (10 minutes of Ads)
Leonard Nimoy was in all eighty episodes of Star Trek .
Star Trek: The Original Series episode airdates can be found on Memory Alpha, the Star Trek Wiki.
There are 726 episodes of Star Trek in total: 79 episodes of The Original Series + 1 pilot 22 episodes of The Animated Series 178 episodes of The Next Generation 176 episodes of Deep Space Nine 172 episodes of Voyager 98 episodes of Enterprise
In Star Trek The Original Series Kirk appears in 79 episodes.
Many people think "Spock's Brain" was the worst.
617 episodes.
Star Trek : Enterprise (season 1) has 26 episodes .
About forty five minutes to a hour. I should know, I luv the original series.
The first ever Episode of Star Trek TOS was premiered 1st September 1966. It was called "The Cage". For more information on Star Trek TOS Episodes please visit the link in the Related Links Section.
Nelix (Ethan Phillips) appears in 170 episodes of Star Trek Voyager according to the imdb database.
The original Star Trek aired on NBC.
There were seventy-nine (79) episodes in Star Trek TOS, which lasted from 1966 to 1969. The only character to appear in every episode was Mr Spock (played by Leonard Nimoy).TOS lasted three seasons. A sequel was planned, called Star Trek: Phase II, but the production was halted when the broadcasting channel was closed. The script for the first episode was modified to create Star Trek: The Motion Picture.