"The Original Series" refers to the first installment of the science fiction television show Star Trek, which aired from 1966 to 1969. Created by Gene Roddenberry, the series follows the adventures of the starship USS Enterprise and its crew, led by Captain James T. Kirk, as they explore space and encounter various alien species. The show is known for its innovative storytelling, diverse cast, and themes of exploration, friendship, and morality. It featured iconic characters such as Spock and Dr. Leonard McCoy, and has had a lasting impact on popular culture, inspiring numerous spin-offs, films, and a dedicated fanbase.