informercial

/ɪnˈfɔrmərʃəl/
noun
  1. A long television advertisement that presents information about a product in a style similar to a regular program or documentary.
    • She bought a kitchen gadget after seeing it on an infomercial at 2 a.m.
    • Many infomercials use testimonials from satisfied customers to build trust.
    • The infomercial claimed the exercise machine could help you lose weight in just days.
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