In the early 1950s, the DuMont Television Network began the modern trend of selling merchant account advertisement time to multiple sponsors. Previously, DuMont had trouble finding sponsors for many of their programs and compensated by selling smaller blocks of advertising time to several businesses. This eventually became the standard for the commercial television industry in the United States. However, it was still a common practice to have single sponsor shows, such as The United States Steel Hour. In some instances the sponsors web design exercised great control over the content of the show - up to and including having one's advertising agency actually writing the show. The single sponsor model is much less prevalent now, a notable exception being the Hallmark Hall of Fame.The 1960s saw advertising transform into a modern approach in which creativity was allowed wireless internet to shine, producing unexpected messages that made advertisements more tempting to consumers' eyes. The Volkswagen ad campaign—featuring such headlines as "Think Small" and "Lemon" (which were used to describe the appearance of the car)—ushered in the era of modern advertising by promoting a "position" or "unique selling proposition" designed to associate each brand with a specific idea in the reader or viewer's mind. This period of American advertising is called the Creative Revolution and its archetype was William Bernbach who helped create the revolutionary Volkswagen ads among others high speed internet service. Some of the most creative and long-standing American advertising dates to this period.