TV Series · 2018 · TV Series · 2010s
A Discovery of Witches
Scored from 637 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: TV Series · 2010s (3,236 peers).
Summary
A young witch named Diana Bishop discovers an alchemical manuscript in the Bodleian Library in Oxford, attracting the attention of vampires, witches, and other magical creatures. She forms a forbidden alliance with Matthew Clairmont, an ancient vampire, as they navigate a secret magical world and uncover dangerous secrets about the manuscript and her own powers.
A Discovery of Witches is a 2018 fantasy, drama and romance television series. It stars Teresa Palmer, Matthew Goode and Valerie Dane. It was created by Deborah Harkness. It was made in the United Kingdom and the United States. It is rated TV-MA. A typical episode runs 60 minutes.
3,235 other television series from the 2010s form the cohort it is ranked inside. A second review pool sits behind it as well: 122 Rotten Tomatoes reviewers clear the same calibration test, and Rankquant scores them separately. 637 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 706 reviewers with at least two reviews each feeds the raw-average track.
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 A Discovery of Witches 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 637.
Cohort: TV Series · 2010s
