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Phonovision

noun
Pho·​no·​vi·​sion | \ˈfōnəˌvizhən\

Definition of Phonovision 

: a system of television transmission over telephone lines designed to make possible the distribution of television programs for paying subscribers

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First Known Use of Phonovision

1947, in the meaning defined above

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The first known use of Phonovision was in 1947

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