Reported in For Trump, Everything is a Rating. (The New York Times, 1/24/2017)
Broadcasting vs. niche-casting. (ScLoHo, 2/5/2008)
And now, candidates for U.S. President! Compare this with Niche-casting, also known as narrow-casting. Niche-casting is designed to reach only those who are likely to use your product or service. The Internet is in the process of designing search engines that do a decent job of niche-casting. Cable TV is offering shows that Niche-cast. Newspapers and print publications are trying to do this with specialty publications and advertising sections devoted to a particular niche.
Still waiting for Donald to change?