Sherlock Holmes Episode Ratings Heatmap
1964 · 2 Seasons · 29 Episodes · Overall Score: 7.6/10 (5 rated)
Season 2 holds the highest collective average score across the series.
Season 2 Details →Lowest score variance (σ = 1.14), maintaining an average of 7.6.
Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
Ratings Analysis & Trajectory
Across 2 seasons and 29 episodes, Sherlock Holmes has earned an overall series rating of 7.6 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 2, Episode 15 ("The Sign of Four"), rated at an extraordinary 9.0/10 with 1 ratings. Conversely, the lowest-rated installment is Season 2, Episode 6 ("The Boscombe Valley Mystery"), landing at 6.0/10.
The most precipitous single-episode shift occurred in Season 2 between Episode 5 ("The Hound of the Baskervilles: Part 2", 8) and Episode 6 ("The Boscombe Valley Mystery", 6), a swing of 2 points.
Top 10 Highest Rated Episodes of Sherlock Holmes
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 2, Ep 15 | The Sign of Four | 9.0 | 1 | Dec 15, 1968 |
| #2 | Season 2, Ep 4 | The Hound of the Baskervilles: Part 1 | 8.0 | 1 | Sep 29, 1968 |
| #3 | Season 2, Ep 5 | The Hound of the Baskervilles: Part 2 | 8.0 | 1 | Oct 6, 1968 |
| #4 | Season 2, Ep 3 | A Study in Scarlet | 7.0 | 1 | Sep 22, 1968 |
| #5 | Season 2, Ep 6 | The Boscombe Valley Mystery | 6.0 | 1 | Oct 13, 1968 |