"Star Trek: The Original Series" is a science fiction television show that first aired in 1966. It follows the adventures of the starship USS Enterprise and its crew, led by Captain James T. Kirk, as they explore new worlds and seek out new life and civilizations. The series is set in the 23rd century and emphasizes themes of exploration, diversity, and cooperation. The show features iconic characters such as Spock, the half-Vulcan science officer, and Dr. Leonard McCoy, the ship's chief medical officer. "Star Trek" has had a significant cultural impact, spawning numerous spin-offs, films, and a dedicated fanbase.