What was the content of the first scheduled radio broadcast in the United States?

Question

I am studying for a Media and Society test. If anyone knows these questions as well, that would help me out a lot:
Who sponsored the first U.S. commercial station?
What were the advantages of FM radio?

Answer 1

No single event or station introduced radio broadcasting to the entire United States. Instead, broadcasting activities evolved in many locations, slowly entering the public consciousness.

Jan. 12, 1910.
Lee De Forest arranges the world's first radio broadcast to public, directly from Metropolitan Opera to several listeners in New York. He used two microphones and a 500-w transmitter. According to the 1989 edition of the Annals of the Metropolitan Opera, "In a pioneering effort, two decades before radio became an important aspect of the company's activities, parts of (Puccini's) Tosca (January 12, 1910) and complete performances of (Mascagni's) Cavalleria Rusticana and (Leoncavallo's) I Pagliacci (January 13, 1910) were broadcast. Few could hear the transmission as the sound quality was poor." The cast of Puccini's Tosca on January 12 featured Olive Fremstad as Floria Tosca, Pasquale Amato as Baron Scarpia and Riccardo Martin as Cavaradossi, the tenor lead.

KDKA in Pittsburgh was the first U.S. commercial station.

"Consider the transition from AM radio to the technologically-superior FM radio. Following World War II, it was clear to industry participants that FM represented the future of radio. The number of FM radio stations tripled between 1946 and 1948, and the industry was bracing for a quick transition into FM. And yet, consumers were unwilling to give up their favorite AM radio stations-or pay an extra $15 for a dual AM-FM radio receiver.

Consumers were also unsure which standard would prevail, adopting a "wait and see" attitude. And while FM was technically superior, its advantages were not meaningful for most people. By 1949, the FM radio hype lost steam and the number of FM radio stations started to decline while AM continued to rise.

Ten years later, the development of higher-quality recording made the advantages of FM radio apparent to the average consumer-increasing the adoption rate of FM. It took FM radio forty years to overtake AM. The superior technology was ultimately adopted, but the process was long and treacherous. And, in spite of the victory of FM, AM radio has not vanished, operating alongside FM." - Haim Mendelson