TV Series · 2023 · TV Series · 2020s
Based on a True Story
Scored from 100 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: TV Series · 2020s (3,070 peers).
Summary
A limited series centered on true-crime podcasters who become uncomfortably close to their subject, blurring the lines between exploitation and obsession.
Based on a True Story is a 2023 comedy and horror television series. It was made in the United States. A typical episode runs 50 minutes. Its comedy subtype is Dark Comedy. It is rated TV-MA.
The cohort it is ranked inside is 2020s television series — 3,070 of them. 100 IMDb reviewers rate with enough spread for a personal baseline to be measured, and those are the ones the calibrated score reads; a separate, broader pool of 102 reviewers with at least two reviews each feeds the raw-average track. A second review pool sits behind it as well: 51 Rotten Tomatoes reviewers clear the same calibration test, and Rankquant scores them separately.
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 Based on a True Story 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 · 2020s (3,070 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 100.
Cohort: TV Series · 2020s
