1973-74 NBC animated Star Trek series, set in the 23rd century after The Original Series and prior to Star Trek: The Motion Picture.
After years of denying that Star Trek had ever been a “kids show” like its prime-time rival Lost In Space, Gene Roddenberry agrees to NBC’s offer to restart the science fiction cult classic as an animated series, premiering on the seventh anniversary of the live-action show’s debut with the episode Beyond The Farthest Star. In the end, this series becomes the only iteration of the Star Trek franchise to win an Emmy Award for a non-technical (i.e. music, hairstyling, special effects) category. 
The second episode of the animated Star Trek series premieres on NBC, written by original series script editor D.C. Fontana, with Mark Lenard reprising the role of Sarek.
The fourth episode of the animated Star Trek series premieres on NBC, with a script by original series writer Margaret Armen.
The seventh episode of the animated Star Trek series premieres on NBC, written by original series cast member Walter “Chekov” Koenig, who is not reprising his role for the animated series.
The tenth episode of the animated Star Trek series premieres on NBC, written by Harry Mudd’s creator, Stephen Kandel, and featuring Roger C. Carmel reprising the role of Mudd.
The 11th episode of the animated Star Trek series premieres on NBC, with a script by original series writer Stephen Kandel.
The 13th episode of the animated Star Trek series premieres on NBC, with a script by original series writer Margaret Armen.
The 14th episode of the animated Star Trek series premieres on NBC, with a script by sci-fi novelist Larry Niven adapting one of his own short stories into the Star Trek universe.
The 16th episode of the animated Star Trek series premieres on NBC. The episode is written by Stephen Kandel, the writer who created the popular Trek character Harry Mudd.
The 17th episode season of the animated Star Trek series airs on NBC. The second season premiere is written by 19-year-old Star Trek fan (and future Trek novelist) Howard Weinstein.
The 18th episode of the animated Star Trek series on NBC. The episode is written by The Trouble With Tribbles writer David Gerrold.
The 19th episode of the animated Star Trek airs on NBC, featuring scenes set in the Enterprise’s “recreation deck”, which can simulate any environment – more than a decade before Star Trek: The Next Generation’s holodeck.
The 22nd episode of the animated Star Trek airs on NBC, bringing both the second season and the animated series to a close. This episode introduces now-retired Robert April, the name originally envisioned by Gene Roddenberry for the captain of the Enterprise.
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