Question: When did the first episode of Star Trek air?

List of Star Trek episodes

List of ''Star Trek'' episodes
This is a list of episodes of the Star Trek television show franchise.
Television episodes


The pilot was shown on CBS television network, thereafter exclusive to internet streaming TV service CBS:All Access (Netflix outside USA)
Production timeline

Additional episodes
"The Cage", 1st Studio pilot for Star Trek
February 1965 (first screened to NBC)
October 14, 1986 (VHS release)
October 4, 1988 (First broadcast)
Star Trek: Short Shorts
10-20-minute webisodes for Star Trek: Discovery
"The Measure of Man" Extended Cut
Released in 2012 in the S2 Blu-ray set; run-time: 57 minutes in 1080p
List of feature-length and multi-part episodes
Star Trek: The Original Series
"The Menagerie" (Parts I and II)
Star Trek: The Next Generation
"Encounter at Farpoint" (Split into 2 parts in syndication)
"The Best of Both Worlds" (Parts I and II)
"Family"
"Redemption" (Parts I and II)
"Unification" (Parts I and II)
"Time's Arrow" (Parts I and II)
"Chain of Command" (Parts I and II)
"Birthright" (Parts I and II)
"Descent" (Parts I and II)
"Gambit" (Parts I and II)
"All Good Things..." (Split into 2 parts in syndication)
Star Trek: Deep Space Nine
"Emissary" (Split into 2 parts in syndication)
"The Homecoming"/"The Circle"/"The Siege"
"The Maquis" (Parts I and II)
"The Search" (Parts I and II)
"Past Tense" (Parts I and II)
"Improbable Cause"/"The Die Is Cast"
"The Way of the Warrior" (Split into 2 parts in syndication)
"Homefront"/"Paradise Lost"
"In Purgatory's Shadow"/"By Inferno's Light"
"Favor the Bold"/"Sacrifice of Angels"
"Tears of the Prophets"/"Image in the Sand"/"Shadows and Symbols"
"What You Leave Behind" (Split into 2 parts in syndication)
Note that the series' serialized structure means that many plot threads and conflicts span multiple episodes, in particular the first six episodes of the sixth season and the series' last nine episodes (referred to collectively as the "Final Chapter").
Star Trek: Voyager
"Caretaker" (Split into 2 parts in syndication)
"Basics" (Parts I and II)
"Future's End" (Parts I and II)
"Scorpion" (Parts I and II)
"Year of Hell" (Parts I and II)
"The Killing Game" (Parts I and II)
"Dark Frontier" (Split into 2 parts in syndication)
"Equinox" (Parts I and II)
"Unimatrix Zero" (Parts I and II)
"Flesh and Blood" (Parts I and II)
"Workforce" (Parts I and II)
"Endgame" (Split into 2 parts in syndication)
Star Trek: Enterprise
"Broken Bow" (Split into 2 parts in syndication)
"Shockwave" (Parts I and II)
"The Expanse"/"The Xindi"/"Rajiin"/"The Shipment"/"Carpenter Street"/"Proving Ground"/"Stratagem"/"Hatchery"/"Azati Prime"/"The Forgotten"/"The Council"/"Countdown"/"Zero Hour"
"Storm Front" (Parts I and II)
"Borderland"/"Cold Station 12"/"The Augments"
"The Forge"/"Awakening"/"Kir'Shara"
"Babel One"/"United"/"The Aenar"
"Affliction"/"Divergence"
"In a Mirror, Darkly" (Parts I and II)
"Demons"/"Terra Prime"
Note that the series adopted a serialized, arc form during its third and fourth seasons, with all episodes of season three (along with one season two episode and three season four episodes) being considered one long arc called the Xindi Arc. The series' fourth season also consisted primarily of two- and three-episode story arcs, most of which are listed above.
Star Trek: Discovery
"The Vulcan Hello"/"Battle at the Binary Stars"
Special narratives
Some shows picked up stories left by other ones, an example of this is "The Price" (TNG) and "False Profits" (Voyager).
Another type of episode connection is when an actor-character combination that were on one show appear on another. An example of this is "Unification" a two part TNG story that featured Spock played by Leonard Nimoy of the original Star Trek.
It was common for Character story arcs to cut across the different shows, and an example of this is the Q-character, and there were multiple cross-overs of actor-character combinations between TNG, DS9, and Voyager. In addition, story arcs were continued outside of the television shows in film in significant ways, especially when TNG transitioned from television to film.
In some cases Star Trek stories were in other forms of media that received less attention than television, such as comics and video games. For example, a story bridging the gap between Nemesis and Star Trek was released as a comic, Star Trek: Countdown.
Episodes per season
Originally aired dates

Episode length
Most Star Trek episodes to-date are from 40–50 minutes, designed for a 1-hour television slot but with breaks for ads. However, as mentioned there is a number feature-length episodes up to an hour and half (90 minutes), but they are also split into two parts format, each with its own introduction.
"The Cage" — 63 minutes[1]
The Measure of a Man: Extended Cut — 57 minutes[2] (Star Trek: The Next Generation)
"Beyond the Farthest Star" —  25 minutes[3] (Star Trek: The Animated Series)
"Calypso" — 17 minutes[4] (Star Trek: Short Treks (Star Trek:Discovery))
"Encounter at Farpoint" (unified version) — 1 hour 31 minutes / 90 minutes [5] (Star Trek: The Next Generation)
"The Best of Both Worlds, Part I" — 45 minutes[6] (Star Trek: The Next Generation)
Timeline
1960s
Star Trek (aka Star Trek: The Original Series)
1970s
Star Trek: The Animated Series
Star Trek: The Motion Picture (1979)
1980s
Star Trek films 2, 3, 4, 5
Star Trek: The Next Generation (Seasons 1-3 of 7)
1990s
Star Trek films 6, 7, 8, 9
Star Trek: The Next Generation (Seasons 3-7 of 7)
Star Trek: Deep Space Nine (1-7 of 7)
Star Trek: Voyager (1-6 of 7)
2000s (-9)
Star Trek: Voyager (6-7 of 7)
Star Trek: Enterprise (1-4 of 4)
Star Trek films 10 and 11
Star Trek: Nemesis (2002)
Star Trek (2009)
2010s
Star Trek films 12 and 13
Star Trek Discovery
See also
Star Trek (film series)