What were radio facts?

Answer 1

The first radio station was NOT Pittsburgh's KDKA, although it was certainly an important early station. Commercial radio began in 1920, and probably 8MK (later known as WWJ) in Detroit was the first, going on the air in August of 1920, while KDKA went on the air in late October. Early radio did not have commercial advertising. Most stations were only on the air a couple of hours a night in those early days. In the first year of radio, there were perhaps ten stations. But by 1922, the radio craze was exploding all over the US, as several hundred stations went on the air. Commercial advertising didn't become common till the mid-1920s. Some stations aired news reports as early as 1921-1922. Most radio broadcasts in the 1920s featured live performers, as tape had not yet been invented. Some stations played phonograph records, but most used live and local talent. The first national radio network was NBC (National Broadcasting Company), which began in late 1926.