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Radio programming is the content that is broadcast by radio stations.

The original inventors of radio, such as Nikola Tesla and Guglielmo Marconi, expected it to be used for one-on-one communication tasks where telephones and telegraphs could not be used because of the problems involved in stringing wires from one point to another, such as in ship-to-shore communications. Those inventors had no expectations whatever that radio would become a major mass entertainment and information medium earning many millions of dollars in revenues annually through commercial sponsorship. These latter uses were brought about after 1920 by business entrepreneurs such as David Sarnoff, who created the National Broadcasting Company (NBC), and William S.

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