"The sponsor of an hour's television program is not buying merely the six minutes devoted to commercial message. He is determining, within broad limits, the sum total of the impact of the entire hour. If he always, invariably, reaches for the largest possible audience, then this process of insulation, of escape from reality, will continue to be massively financed, and its apologist will continue to make winsome speeches about giving the public what it wants, or "letting the public decide.""