Is Signal actually good?

Signal sits in the 90.7% percentile against all 52,376 ranked seriess, meaning it scores above 90.7% of them. That figure is a rank, not a star average: each reviewer's score is re-centred on their own rating history before anything is compared, so a generous grader and a harsh one count the same.

How does Signal compare to similar seriess?

Within TV Series · 2010s, Signal lands in the 88.4% percentile. The cohort comparison exists because a global rank flatters or punishes a series for its category rather than its quality.

How many reviewers is Signal's score based on?

88 reviewers cleared the calibration test for Signal — meaning their rating history varies enough to place a personal baseline. Reviewers who rate everything the same carry no information and are excluded rather than averaged in.

How is the Signal score calculated?

Every review is scored relative to the reviewer's own average rather than taken at face value, then each calibrated reviewer is weighted equally and the result is expressed as a percentile against the full corpus. The output is a rank among peers, which is why it is published as a percentile and never as a star rating.

2016

global pct

90.7

TV Series · 2016 · TV Series · 2010s

Signal

Name: Signal
Genre: Crime, Drama, Fantasy
Released: 2016
Duration: 1 h

Scored from 88 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: TV Series · 2010s (3,236 peers).

90.7%

Global percentile

vs. all 52,376 ranked titles

88.4%

In-cohort percentile

TV Series · 2010s · 3,236 titles

97.3%

AI-adjusted percentile

88 calibrated reviewers, thin samples pulled to the mean

Summary

Park Hae-young, a criminal profiler in present-day Seoul, finds a discarded walkie-talkie that crackles to life and connects him to Lee Jae-han, a stubborn detective working in 1989. Across unpredictable transmissions the two trade information about unsolved cases — a child abduction, a string of murders — and learn that acting on what they hear rewrites the present in ways neither can control. Lieutenant Cha Soo-hyun, once Jae-han's junior partner and now Hae-young's superior, is the living link between the two eras. This sixteen-episode South Korean tvN series, written by Kim Eun-hee, combines cold-case procedural with time-slip fantasy and draws its cases from notorious real Korean crimes.

Signal is a 2016 crime, drama and fantasy television series. A typical episode runs 60 minutes. Its listed language is Korean. It is rated TV-MA. It was made in South Korea.

A second review pool sits behind it as well: 2 Rotten Tomatoes reviewers clear the same calibration test, and Rankquant scores them separately. Only 88 of its IMDb reviewers rate with enough spread for a personal baseline to be measured, so the calibrated figure rests on a thin sample; a broader pool of 97 reviewers with at least two reviews feeds the raw-average track. 3,235 other television series from the 2010s form the cohort it is ranked inside.

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 Signal 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 88.