TV Series · 2025 · TV Series · 2020s
Dept. Q
Scored from 500 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 brilliant but abrasive Edinburgh detective, sidelined after a traumatic shooting, is assigned to lead a new cold case unit known as Department Q in the basement of the station. With a small, unconventional team, he reopens the disappearance of a prominent prosecutor that everyone else has written off, uncovering buried secrets as he works through his own guilt.
Released in 2025, Dept. Q is a crime, drama and mystery television series.
Rotten Tomatoes carries a separate audience for the same title, 236 of whom clear the calibration test. The calibrated figure is built from 500 reviewers whose rating history varies enough to place their own average. A broader pool of 554 reviewers with two or more reviews feeds the raw-average track instead. The cohort it is ranked inside is 2020s television series — 3,070 of them.
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 Dept. Q 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 500.
Cohort: TV Series · 2020s
