> In Manhattan's Advertising Club on Park Avenue, a man was making a speech. Suddenly, to the amazement of the audience, the mike in front of the speaker's mouth burst into music.
> In the Chanin Building on nearby Lexington Avenue, a lawyer named Arthur Knox was listening to a visitor in his 42nd-floor office. Hard-of-hearing, Mr. Knox was wearing an electrical earphone. All of a sudden he began to hear a description of ice-skating at the World's Fair's Sun Valley.
These mysterious interruptions were traced to television. They had come from NBC's Station W2XBS...
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