"Space Seed" is a first-season episode of the original science fiction television series Star Trek, first broadcast on February 16, 1967. It is episode #22, production #24, written by Gene L. Coon and Carey Wilber, based on a story by Carey Wilber, and directed by Marc Daniels. The 1982 film Star Trek II: The Wrath of Khan serves as a sequel to this episode. Read more
"Requiem for Methuselah" is a third season episode of the original science fiction television series Star Trek, first broadcast on February 14, 1969. Its repeat broadcast, on September 2, 1969, was the last official telecast of the series to air on NBC. Read more
"The Return of the Archons" is a first season episode of the original science fiction television series Star Trek. It is episode #21, and was first aired February 9, 1967. This episode contains Star Trek's first reference to the Prime Directive. Read more
"Return to Tomorrow" is a second season episode of the original science fiction television series Star Trek, first broadcast February 9, 1968 and repeated August 2, 1968. Read more
"A Private Little War" is the nineteenth episode of the second season of the original science fiction television series Star Trek, first broadcast February 2, 1968 and repeated on August 23, 1968. Read more
"Court Martial" is an episode of the original science fiction television series Star Trek. It is a first season episode, #20, production #15, and was aired on February 2, 1967. Read more
"The Lights of Zetar" is a third season episode of the original science fiction television series Star Trek, first broadcast January 31, 1969 and repeated on August 26, 1969. In this episode, strange incorporeal aliens threaten the Memory Alpha station and the Enterprise. Read more
"Tomorrow Is Yesterday" is a first-season episode of the original science fiction television series Star Trek. It is episode #19, production #21, first broadcast on January 26, 1967, repeated July 13, 1967, and was remastered in 2006 for syndication broadcast on May 5, 2007. Read more
"That Which Survives" is the seventeenth episode of the third season of the original science fiction television series Star Trek, first broadcast January 24, 1969 and repeated July 29, 1969. It was written by John Meredyth Lucas, based on a story by D.C. Fontana under the pseudonym Michael Richards and directed by Herb Wallerstein. In this episode, the crew of the Enterprise visit an abandoned outpost guarded by a mysterious computer. Read more
"The Immunity Syndrome" is a second season episode of the original science fiction television series Star Trek first broadcast January 19, 1968 and repeated June 7, 1968. Read more