Star Trek poster

Star Trek

1966-1969 3 seasons

8.4 Top 15%

(99,425 votes)

80 episodes

IMDb
This show averages 7.3, which is 0.1 points below the global average of 7.4 Top 59%
7.4 7.3 0 1 2 3 4 5 6 7 8 9 10 IMDb Rating
All 806,989 TV Episodes
This Show (80 episodes)
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S1
S2
S3
E1
7.6
8.6
5.7
E2
7.2
7.1
8.4
E3
7.0
7.5
6.7
E4
7.7
9.0
5.2
E5
7.8
6.4
6.9
E6
7.6
8.7
7.2
E7
6.7
6.2
7.7
E8
7.5
7.3
7.1
E9
6.9
7.2
8.0
E10
7.4
8.5
6.5
E11
8.0
6.7
7.3
E12
8.2
7.3
6.5
E13
8.1
7.2
7.0
E14
7.1
7.2
6.9
E15
8.8
8.7
7.1
E16
7.3
7.0
6.5
E17
7.6
7.7
6.5
E18
7.2
7.5
6.2
E19
7.9
6.8
7.3
E20
7.9
7.4
5.4
E21
7.4
7.5
7.1
E22
7.1
7.5
6.6
E23
8.7
6.0
8.1
E24
8.0
8.0
6.8
E25
7.8
7.0
E26
8.3
7.6
E27
8.1
E28
5.7
E29
9.2
E30
7.5
Avg
7.6
7.4
6.9
Excellent
Great
Good
Regular
Bad

The Quality Arc

Each point is an episode, plotted chronologically. The colored bands mark season boundaries. Look for upward or downward trends to see if quality improved or declined over time.

S1 S2 S3 4.55.66.77.88.910 Rating 8 16 24 32 40 48 56 64 72 80 Episode 10 9 8 7 6 5

Episode Engagement

Vote count shows how many people cared enough to rate. High votes + high rating = beloved classic. High votes + low rating = notorious stinker. Low votes + high rating = hidden gem.

Rating threshold:
27 Standouts
13 Infamous
8 Hidden Gems
32 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 5.26.06.87.68.49.2 Rating 3k 4k 5k 6k 8k Votes (log scale)
Top Standout: S1E28 The City on the Edge of Forever
Most Infamous: S1E27 The Alternative Factor
Best Hidden Gem: S3E23 All Our Yesterdays

Episodes plotted by rating vs. vote count. The vertical line marks the rating threshold (7.5). More votes = more engagement. Toggle above to compare against global or show-specific median.

Season Trajectory

A simplified view: one point per season. This smooths out episode-to-episode noise to show the overall arc of the series.

66.577.588.5 Rating S1 S2 S3 Season 7.6 7.4 6.9 10 9 8 7 6 5

Season Momentum

Did each season build momentum or fizzle out? Green arrows mean the finale rated higher than the premiere. Red means the opposite. Longer arrows = bigger swings.

5678910 Rating S1 7.6 7.5 -0.1 S2 8.6 7.6 -1.0 S3 5.7 6.8 +1.1

Season Consistency

Some seasons are reliable bangers. Others are hit-or-miss. Each dot is an episode. Tightly clustered dots mean consistent quality. Scattered dots mean a mixed bag.

4568910 Rating S1 Uneven avg 7.6 S2 Erratic avg 7.4 S3 Erratic avg 6.9 Episode Premiere/Finale

Each dot is an episode. Clustered dots = consistent quality. Scattered dots = variable season. Hover for episode details.

Episode Power Rankings

The best and worst episodes at a glance. Use this to find must-watch episodes or ones you might want to skip.

🏆 Top 10 Episodes Season 2 dominates (5/10)

  1. 1 S1E28 The City on the Edge of Forever 9.2
  2. 2 S2E4 Mirror, Mirror 9.0
  3. 3 S1E14 Balance of Terror 8.8
  4. 4 S1E22 Space Seed 8.7
  5. 5 S2E6 The Doomsday Machine 8.7
  6. 6 S2E15 The Trouble with Tribbles 8.7
  7. 7 S2E1 Amok Time 8.6
  8. 8 S2E10 Journey to Babel 8.5
  9. 9 S3E2 The Enterprise Incident 8.4
  10. 10 S1E25 The Devil in the Dark 8.3

📉 Bottom 5 Episodes Season 3 dominates (3/5)

  1. 80 S3E4 And the Children Shall Lead 5.2
  2. 79 S3E20 The Way to Eden 5.4
  3. 78 S3E1 Spock's Brain 5.7
  4. 77 S1E27 The Alternative Factor 5.7
  5. 76 S2E23 The Omega Glory 6.0
80 Total Episodes
9.2 Highest Rating
5.2 Lowest Rating
4.0 Range