Star Trek (1966)

Action · Adventure · Sci-Fi

Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.

IMDb rating: 8.4 (102,308 votes)
Episode average: 7.3 -1.1 vs IMDb
Seasons: 3
Streaming (US): Paramount+
Language: EN
Type: TV series

Declining trajectory: each season no better than the last. Rising Shows ranks whole shows by the shape of their rating trend rather than one average score, which is how you find a show that got better rather than a show that started well. See every Declining show in the explorer →

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Ratings refreshed Oct 3, 2026 · 3 seasons indexed

Cast

Seasons

Season 1 (1966)

7.64 avg 30 episodes 7.6 → 7.5 50 min avg

Rollercoaster

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
0	The Cage	7.6	8,209
1	The Man Trap	7.2	6,968
2	Charlie X	7.0	6,476
3	Where No Man Has Gone Before	7.7	7,499
4	The Naked Time	7.8	6,054
5	The Enemy Within	7.6	5,738
6	Mudd's Women	6.7	5,643
7	What Are Little Girls Made Of?	7.5	5,449
8	Miri	6.9	5,381
9	Dagger of the Mind	7.4	5,113
10	The Corbomite Maneuver	8.0	5,768
11	The Menagerie: Part I	8.2	5,716
12	The Menagerie: Part II	8.1	5,451
13	The Conscience of the King	7.1	4,971
14	Balance of Terror	8.8	6,636
15	Shore Leave	7.3	5,177
16	The Galileo Seven	7.6	4,980
17	The Squire of Gothos	7.2	4,857
18	Arena	7.9	5,301
19	Tomorrow Is Yesterday	7.9	5,036
20	Court Martial	7.4	4,672
21	The Return of the Archons	7.1	4,503
22	Space Seed	8.7	6,324
23	A Taste of Armageddon	8.0	4,908
24	This Side of Paradise	7.8	4,729
25	The Devil in the Dark	8.3	5,139
26	Errand of Mercy	8.1	4,746
27	The Alternative Factor	5.7	4,529
28	The City on the Edge of Forever	9.2	7,629
29	Operation -- Annihilate!	7.5	4,313

Season 2 (1967)

7.45 avg 26 episodes 8.6 → 7.5 50 min avg

Rollercoaster

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	Amok Time	8.6	5,503
2	Who Mourns for Adonais?	7.1	4,648
3	The Changeling	7.6	4,281
4	Mirror, Mirror	9.0	5,908
5	The Apple	6.4	4,102
6	The Doomsday Machine	8.7	5,318
7	Catspaw	6.2	4,209
8	I, Mudd	7.3	4,366
9	Metamorphosis	7.2	4,243
10	Journey to Babel	8.5	4,704
11	Friday's Child	6.7	3,951
12	The Deadly Years	7.3	4,009
13	Obsession	7.2	3,826
14	Wolf in the Fold	7.2	3,989
15	The Trouble with Tribbles	8.7	5,686
16	The Gamesters of Triskelion	7.0	4,076
17	A Piece of the Action	7.7	4,438
18	The Immunity Syndrome	7.5	3,798
19	A Private Little War	6.7	3,812
20	Return to Tomorrow	7.4	3,848
21	Patterns of Force	7.5	4,027
22	By Any Other Name	7.5	3,926
23	The Omega Glory	6.0	3,978
24	The Ultimate Computer	8.0	4,025
25	Bread and Circuses	7.1	3,815
26	Assignment: Earth	7.5	4,369

Season 3 (1968)

6.86 avg 24 episodes 5.7 → 6.8 51 min avg

Season 3 episodes - IMDb ratings
#	Title	Rating	Votes
1	Spock's Brain	5.7	4,184
2	The Enterprise Incident	8.4	4,525
3	The Paradise Syndrome	6.7	3,913
4	And the Children Shall Lead	5.2	3,923
5	Is There in Truth No Beauty?	6.9	3,720
6	Spectre of the Gun	7.2	3,928
7	Day of the Dove	7.7	3,855
8	For the World Is Hollow and I Have Touched the Sky	7.1	3,641
9	The Tholian Web	8.0	3,953
10	Plato's Stepchildren	6.5	3,816
11	Wink of an Eye	7.3	3,656
12	The Empath	6.5	3,758
13	Elaan of Troyius	7.0	3,689
14	Whom Gods Destroy	6.9	3,583
15	Let That Be Your Last Battlefield	7.2	3,796
16	The Mark of Gideon	6.5	3,471
17	That Which Survives	6.5	3,423
18	The Lights of Zetar	6.2	3,380
19	Requiem for Methuselah	7.2	3,747
20	The Way to Eden	5.4	4,036
21	The Cloud Minders	7.1	3,499
22	The Savage Curtain	6.6	3,509
23	All Our Yesterdays	8.1	4,023
24	Turnabout Intruder	6.8	3,546

Star Trek (1966)

Cast

Seasons

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