Funny in the YouTube video that the Guru box surrounds the Prevue logo.
These aren't famous uses, but back when I worked for Famous Footwear, I suggested an in-store kiosk with an interactive interface for customers to query different shoes and brands, get technical information (similar to the documents we were shipped during promotions,) and even find out what we have in stock, and eventually place orders. I worked for two weeks on a prototype using my A1000 which never saw the light of day.
The word I heard was that someone up in the ranks believed that an interactive computer system like that would take away from the customer shopping experience, and produce lazy sales people.
Later when working at an apartment complex, I discovered that the in-house cable system had recently retired an A500 with a genlock in favor of some video titler to run the information channel. Never found the old Amiga equipment, though (I think) the cable guy did try his best.