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It might be later than 1964 due to the UHF tuner. Few TV manufacturers put UHF tuners in their TVs before '64 (except as an extra-cost option; many VHF-only sets had a knockout plug with the words "for UHF tuner", "UHF", etc. on the front panel, to be used for the optional UHF tuner), except in areas where there were only UHF TV stations (Youngstown, Ohio, Fort Wayne, Indiana, Fresno, California, to name three).
UHF TV tuners would have been useless in northeastern Ohio in the '50s through the mid-'60s, as Cleveland did not get its first UHF TV station (an NET, now PBS affiliate) until 1965; its first commercial UHF signed on three years later. Los Angeles and New York City viewers would have no use for TVs with UHF tuners in any case, since these cities have seven VHF stations, the maximum possible with a 12-channel VHF tuner.
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Jeff, WB8NHV
Collecting, restoring and enjoying vintage Zenith radios since 2002
Zenith. Gone, but not forgotten.
Last edited by Jeffhs; 04-28-2017 at 08:02 PM.
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