Season 4 holds the highest collective average score across the series.
Season 4 Details →Lowest score variance (σ = 0.39), maintaining an average of 6.8.
Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
| Episode | Season 1 | Season 2 | Season 3 | Season 4 |
|---|---|---|---|---|
| Ep 1 | 7.2 | 7.0 | 7.0 | 5.8 |
| Ep 2 | 6.8 | 7.0 | 7.0 | 8.3 |
| Ep 3 | 8.0 | 7.0 | 7.0 | 8.0 |
| Ep 4 | 7.7 | 7.7 | 6.0 | 8.0 |
| Ep 5 | 7.0 | 7.7 | 6.7 | 7.7 |
| Ep 6 | 6.7 | 6.3 | 6.7 | 7.3 |
| Ep 7 | 6.7 | 7.0 | 7.0 | 6.7 |
| Ep 8 | 7.3 | 7.3 | 7.0 | 7.0 |
| Ep 9 | 8.3 | 7.3 | 7.3 | 7.7 |
| Ep 10 | 8.0 | 7.0 | 6.3 | 8.0 |
| Ep 11 | 7.0 | 7.3 | – | 8.7 |
| Ep 12 | 6.7 | 7.3 | – | 9.0 |
| Ep 13 | 7.7 | 6.7 | – | – |
| Ep 14 | 6.3 | 6.8 | – | – |
| Ep 15 | 8.0 | 7.7 | – | – |
| Ep 16 | 7.3 | 7.7 | – | – |
| Ep 17 | 7.3 | 8.0 | – | – |
| Ep 18 | 6.2 | 7.7 | – | – |
| Ep 19 | 7.3 | 6.7 | – | – |
| Ep 20 | 7.7 | 8.5 | – | – |
| Season Avg | 7.3 | 7.3 | 6.8 | 7.7 |
Ratings Analysis & Trajectory
Across 4 seasons and 62 episodes, Metalocalypse has earned an overall series rating of 7.3 out of 10. The series displays remarkable consistency across its narrative arc, maintaining reliable ratings from premiere to conclusion.
The single highest-rated hour of television in the series is Season 4, Episode 12 ("Church of the Black Klok"), rated at an extraordinary 9.0/10 with 3 ratings. Conversely, the lowest-rated installment is Season 4, Episode 1 ("Fanklok"), landing at 5.8/10.
The most precipitous single-episode shift occurred in Season 1 between Episode 13 ("Go Forth and Die", 7.7) and Episode 14 ("Bluesklok", 6.3), a swing of 1.4 points.
Top 10 Highest Rated Episodes of Metalocalypse
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 4, Ep 12 | Church of the Black Klok | 9.0 | 3 | Jul 15, 2012 |
| #2 | Season 4, Ep 11 | Breakup Klok | 8.7 | 3 | Jul 8, 2012 |
| #3 | Season 2, Ep 20 | Dethrelease (2) | 8.5 | 2 | Sep 7, 2008 |
| #4 | Season 1, Ep 9 | Mordland | 8.3 | 3 | Oct 1, 2006 |
| #5 | Season 4, Ep 2 | Diversityklok | 8.3 | 3 | May 6, 2012 |
| #6 | Season 1, Ep 3 | Birthdayface | 8.0 | 4 | Aug 20, 2006 |
| #7 | Season 1, Ep 10 | FatKlok | 8.0 | 3 | Oct 8, 2006 |
| #8 | Season 1, Ep 15 | Religionklok | 8.0 | 3 | Nov 12, 2006 |
| #9 | Season 4, Ep 3 | Prankklok | 8.0 | 3 | May 13, 2012 |
| #10 | Season 4, Ep 4 | Motherklok | 8.0 | 3 | May 20, 2012 |