The landmark American science fiction television series Star Trek premieres with its first-aired episode, "The Man Trap".

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 acquired the retronym of Star Trek: The Original Series to distinguish the show within the media franchise that it began.

"The Man Trap" is the first episode of the American science fiction television series Star Trek to be broadcast. It aired on NBC on September 8, 1966. Set in the 23rd century, the series follows the adventures of Captain James T. Kirk and his crew aboard the Starfleet starship USS Enterprise. In this episode, the crew visit an outpost to conduct medical exams on the residents, only to be attacked by a shapeshifting alien creature seeking to extract salt from their bodies. "The Man Trap" was written by George Clayton Johnson and directed by Marc Daniels.