Progressive Broadcasting System

The Progressive Broadcasting System (PBS) was an American commercial radio network of 1950-51. "Catering to smaller radio stations," the company had hoped to affiliate with around 1,000 radio stations in the United States which did not already have affiliation agreements with the top three national radio networks of the era: NBC, CBS, and ABC; or two smaller national networks: Mutual, and Liberty.

The Evening Review, a newspaper from East Liverpool, Ohio announced the company's formation on November 20th, 1950. Broadcasts began November 26, 1950. Two hundred stations were needed for the network to break even. However, only "about 100 stations" joined, and the network folded at the end of its schedule on January 31, 1951.