What is Signal (Korean)'s IQ Score?

Signal (Korean) has an IQ Score of 148/200 on TV Intelligentsia's Intelligence Quotient framework, placing it in the Stimulating tier. The score breaks down to 40/50 Cognitive Stimulation, 30/50 Educational Value, and 42/50 Craft & Quality.

Is Signal (Korean) educational?

Signal (Korean) is moderate on educational value, 30/50 on TVI's rubric. Some learning happens, but it isn't the show's primary work.

How does TV Intelligentsia calculate IQ Score?

TV Intelligentsia's IQ Score is calculated as round((Cognitive Stimulation × 0.4 + Educational Value × 0.35 + Craft & Quality × 0.25) × 4), scoring titles from 0 to 200 across five tiers: Masterclass (≥160), Stimulating (≥130), Competent (≥100), Passive (≥70), and Numbing (<70). The framework is published at tvintelligentsia.com/methodology/.

Signal (Korean) , IQ Score 148/200

Signal (Korean) has an IQ Score of 148/200 on TV Intelligentsia's Intelligence Quotient rubric, placing it in the Stimulating tier.

By Jordan Robinson, MD, MPH·Updated 2026-06-17·Methodology

crimedramathriller

148/ 200

Stimulating

Consistently challenges the viewer and rewards attention

Score Breakdown

Cognitive Stimulation/50

Educational Value/50

Craft & Quality/50

IQ = round((Cognitive × 0.4 + Educational × 0.35 + Craft × 0.25) × 4) · How we score →

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Why you should trust this score

Scored under Jordan Robinson, MD, MPH

Physician and founding editor. Maintains the adult catalog against the published rubric and reviews the rubric application.

Methodology

Published rubric, v1.2

Formula

round(C × 0.40 + E × 0.35 + Q × 0.25) × 4

Database scale

2,338 titles, version-controlled

How we stay independent. We accept no studio money. We pay for our own streaming subscriptions. Our reviewers see no sponsor data, no affiliate revenue, and no screener access in exchange for coverage. More about how we work →

The TVI Take

A detective communicates with a cold-case detective from the 1980s via walkie-talkie across time. One of the most formally inventive Korean crime dramas, the time communication premise is used with genuine intelligence.

The cold cases are based on real Korean crimes. Exceptional craft and the mystery mechanics are tightly constructed.

Where to Watch

We don't have live streaming data for this title yet. Find where to watch on JustWatch →

Streaming availability data via JustWatch + TMDB.

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