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Consumer 101

S1 E711/17/18

Tread Carefully
Also available on the nbc app

Jack struggles to keep up with "Johnnie," a device used to test treadmills, gets a look inside the mind of a top scientist by asking him to perform a simple task: clean a kitchen, and shares useful tips for buying a car

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S1 E720 minTV-GFull EpisodeDaytime
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