Back when infomercials were in their infancy, there was an infomercial "series" called Amazing Discoveries, hosted by Mike Levey, also known as "The Sweater Man". The series featured a wide variety of products, including such Grey Matters Videos favorites such as Harry Lorayne and Arthur Benjamin.

The footage above is the first 10 minutes of the Amazing Discoveries ad that featured Scott Flansburg's mental math course.

Video Format:
YouTube