"The advertising of products, of course, is the real purpose of television. And it is difficult to overstate the extent to which modern pervasive electronic advertising has reshaped our society. In the 1950s, John Kenneth Galbraith first described the way in which advertising has altered the classical relationship by which supply and demand are balanced over time by the invisible hand of the marketplace. According to Galbraith, modern advertising campaigns were beginning to create high levels of demand for products that consumers never knew they wanted, much less needed.

The same phenomenon Galbraith noticed in the commercial marketplace is now the dominant fact of life in what used to be America's marketplace for ideas. The inherent value or validity of political propositions put forward by candidates for office is now largely irrelevant compared to the advertising campaigns that shape the perceptions of voters."