Season 1 holds the highest collective average score across the series.
Season 1 Details →Lowest score variance (σ = 1.11), maintaining an average of 5.7.
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 1 seasons and 7 episodes, History's Greatest Mysteries has earned an overall series rating of 5.7 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 1, Episode 2 ("Titanic's Lost Evidence"), rated at an extraordinary 8.0/10 with 3 ratings. Conversely, the lowest-rated installment is Season 1, Episode 7 ("Roswell: The First Witness – The Writer"), landing at 5.0/10.
The most precipitous single-episode shift occurred in Season 1 between Episode 2 ("Titanic's Lost Evidence", 8) and Episode 3 ("Endurance: The Hunt for Shackleton's Ice Ship", 5), a swing of 3 points.
Top 10 Highest Rated Episodes of History's Greatest Mysteries
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 1, Ep 2 | Titanic's Lost Evidence | 8.0 | 3 | Nov 21, 2020 |
| #2 | Season 1, Ep 1 | The Final Hunt For D.B. Cooper | 6.0 | 2 | Nov 14, 2020 |
| #3 | Season 1, Ep 4 | The Escape of John Wilkes Booth | 6.0 | 2 | Dec 5, 2020 |
| #4 | Season 1, Ep 3 | Endurance: The Hunt for Shackleton's Ice Ship | 5.0 | 2 | Nov 28, 2020 |
| #5 | Season 1, Ep 5 | Roswell: The First Witness - The Journal | 5.0 | 2 | Dec 12, 2020 |
| #6 | Season 1, Ep 6 | Roswell: The First Witness – The Memo | 5.0 | 2 | Dec 19, 2020 |
| #7 | Season 1, Ep 7 | Roswell: The First Witness – The Writer | 5.0 | 2 | Dec 26, 2020 |