Here is Peter Boettke calling attention to a PBS story with and about Walter Williams. Watch the clip.
I find that Williams is always worth listening to. He explains basic economics as clearly as anyone. This is particularly important because too many college econ courses are obscure and forgettable. Williams also has a personal history that is worth hearing about.
Call your local affiliate for date of showing -- or go to this list. I will not be able to see the program. LA is not on the list, neither is NY, Chicago, San Francisco, Seattle, Portland, etc. I see only two of the large U.S. metros represented: Philadelphia and Washington, DC.
Station managers and/or their audiences in most of the large cities seemingly have a narrow (predictable) view of diversity.