Merlin poster

Merlin

2008-2012 5 seasons

7.9 Top 32%

(92,450 votes)

65 episodes

IMDb
This show averages 8.1, which is 0.7 points above the global average of 7.4 Top 24%
7.4 8.1 0 1 2 3 4 5 6 7 8 9 10 IMDb Rating
All 806,989 TV Episodes
This Show (65 episodes)
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S1
S2
S3
S4
S5
E1
7.7
7.7
8.3
8.6
8.5
E2
7.5
8.1
8.3
8.8
8.4
E3
7.6
7.8
7.9
8.4
8.0
E4
7.9
7.9
8.2
8.1
7.9
E5
7.9
7.4
8.1
8.1
7.9
E6
7.5
7.7
7.4
8.5
7.7
E7
7.4
8.2
7.7
8.2
7.8
E8
8.0
8.4
8.6
7.2
7.9
E9
8.2
8.2
7.3
7.9
8.3
E10
8.1
7.8
8.3
7.8
8.0
E11
8.2
7.9
7.7
8.1
8.4
E12
8.0
8.6
8.6
8.6
8.9
E13
8.4
9.0
9.2
8.9
8.2
Avg
7.9
8.1
8.1
8.2
8.1
Excellent
Great
Good

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 S4 S5 6.57.27.98.69.310 Rating 7 14 21 28 35 42 49 56 63 70 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:
31 Standouts
2 Infamous
29 Hidden Gems
3 Forgettable
Standouts Infamous Hidden Gems Forgettable Global: 7.5 7.27.68.08.48.89.2 Rating 754 932 1k 1k 2k Votes (log scale)
Top Standout: S3E13 The Coming of Arthur: Part Two
Most Infamous: S1E7 The Gates of Avalon
Best Hidden Gem: S4E13 The Sword in the Stone: Part Two

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.

77.47.88.28.69 Rating S1 S2 S3 S4 S5 Season 7.9 8.1 8.1 8.2 8.1 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 7.7 8.4 +0.7 S2 7.7 9.0 +1.3 S3 8.3 9.2 +0.9 S4 8.6 8.9 +0.3 S5 8.5 8.2 -0.3

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.

678910 Rating S1 Typical avg 7.9 S2 Typical avg 8.1 S3 Uneven avg 8.1 S4 Uneven avg 8.2 S5 Typical avg 8.1 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 4 dominates (4/10)

  1. 1 S3E13 The Coming of Arthur: Part Two 9.2
  2. 2 S2E13 The Last Dragonlord 9.0
  3. 3 S4E13 The Sword in the Stone: Part Two 8.9
  4. 4 S5E12 The Diamond of the Day: Part One 8.9
  5. 5 S4E2 The Darkest Hour: Part Two 8.8
  6. 6 S2E12 The Fires of Idirsholas 8.6
  7. 7 S3E8 The Eye of the Phoenix 8.6
  8. 8 S3E12 The Coming of Arthur: Part One 8.6
  9. 9 S4E1 The Darkest Hour 8.6
  10. 10 S4E12 The Sword in the Stone: Part One 8.6

📉 Bottom 5 Episodes Season 3 dominates (2/5)

  1. 65 S4E8 Lamia 7.2
  2. 64 S3E9 Love in the Time of Dragons 7.3
  3. 63 S3E6 The Changeling 7.4
  4. 62 S2E5 Beauty and the Beast 7.4
  5. 61 S1E7 The Gates of Avalon 7.4
65 Total Episodes
9.2 Highest Rating
7.2 Lowest Rating
2.0 Range