And then you have the other problem where the brand name becomes too tied to the object. TV shows and knockoffs have to use non-copyrighted terms, which can be confusing. I've watched so many baking shows where they clearly weren't allowed to say the name of a brand of cereal or candy, and the generic term sounded ridiculously bland.
Kleenex vs. Facial tissue
Those spots in the U.S. where all soda is "coke"
And across the pond they tend to call vacuuming "hoovering." Whereas I've only known Hoover to be a brand name.
