TV Series · 2017 · TV Series · 2010s
Legion
Scored from 447 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: TV Series · 2010s (3,236 peers).
Summary
David Haller, a troubled young man with a history of mental illness, discovers he is actually a powerful mutant with reality-bending and telepathic abilities. After escaping a psychiatric hospital, he becomes entangled with others like him and must uncover the truth about his extraordinary powers while evading mysterious forces seeking to control him.
Legion is a 2017 drama, science-fiction and thriller television series starring Dan Stevens, Rachel Keller and Aubrey Plaza. Episodes run about 55m. Its certificate is TV-MA. Its country of origin is listed as the United States. Noah Hawley created it.
The cohort it is ranked inside is 2010s television series — 3,236 of them. Rotten Tomatoes carries a separate audience for the same title, 261 of whom clear the calibration test. The calibrated figure is built from 447 reviewers whose rating history varies enough to place their own average. A broader pool of 474 reviewers with two or more reviews feeds the raw-average track instead.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where Legion lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against TV Series · 2010s (3,236 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 447.
Cohort: TV Series · 2010s
