It is difficult to develop a measure of diversity in broadcast programing, and it is equally difficult to measure the value of a broadcast to its viewer. Similarly, attempts to measure viewer preference functions have resulted in categorizations so vague as to be meaningless. In the face of such ambiguity, attempts by the Federal Communications Commission to regulate the diversity of programing in public television are destined not to satisfy consumers, and they may result in large scale inconvenience to the industry. (EMH)