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The door to electromagnetism is opened by the theories of Michael Faraday and James Clerk-Maxwell.
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Paul Nipkow devises a scanning disc television system.
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Reginald Fessenden invents wireless telephony, for radio waves to carry signals a significant distance.
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The U.S. issues the Wireless Ship Act.
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The Radio Acts assigns three- and four-letter codes to radio stations and limits broadcasting to the 360m wavelength, which jams signals
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Radio was first developed mainly for the military.
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By the end of 1922 400 radio stations were set up.
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Philo Farnsworth transmits the first all-electronic television image.
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Crossley Inc. tabulates the first formal radio ratings system.
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Edwin Armstrong introduces Frequency Modulation (FM), a static-free method of transmission.
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The first instance of network censorship occurs.
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The orthicon tube, developed by RCA, improves light sensitivity a hundredfold.The FCC creates the commercial broadcasting spectrum of 13 channels, and 130 applications for broadcast licenses follow.
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Saturday morning children's programming begins. Phonevision, the first pay-per-view service, becomes available.
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Color television introduced in the U.S.
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Congress creates PBS
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Time Inc. transmits HBO, the first pay cable network.
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President Bill Clinton signs legislation that significantly deregulates telecommunications, creating almost limitless opportunities for broadcasters and cable companies.
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Reality TV mania hits the U.S. The phenomena begins with British import Who Wants to Be a Millionaire.