In 1960 VHF had 440% commercial stations, and the UHF only had 75%

the first color TV demonstrated to the FCC in 1946 by  Peter  Gold-mark.

The first experimental coaxial cable lines were laid at AT&T in New York and Philadelphia in 1936 so systems could carry 132,000 conversations and 200 TV shows.

Over 85% households in the U.S.A had a TV set

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