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Penn & Teller: Bull!

8 Season
89 Episode

Penn & Teller: Bull! - Season 7 Episode 5 Lie Detectors


(111 votes, average: 7.70/ 10)

30 minutes 2025 HD

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Polygraphs are used in thousands of investigations and job screenings. Can a machine really detect whether someone is lying? Penn & Teller will meet people whose lives were ruined by the faulty tests.

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