Star Trek is an American science fiction television series created by Gene Roddenberry that follows the adventures of the starship USS Enterprise ( NCC- 1701) and its crew. It later acquired the retronym of Star Trek: The Original Series ( TOS) to distinguish the show within the media franchise that it began. The show is set in the Milky Way galaxy, roughly during the 2260s.
Star Trek: Enterprise, titled simply Enterprise for its first two seasons, is an American science fiction television series created by Rick Berman and Brannon originally aired from September 26, to May 13, on UPN, spanning 98 episodes across four seasons. The sixth series in the Star Trek franchise, it served as a prequel to Star Trek: The Original Series.