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PAL was not introduced until 1967. Polish analog tv was system B 625 line 25fps interlaced with a 5.5MHz video-sound,carrier spacing. Essentially the same as the rest of Westen Europe.
One channel is practical for two reasons, saving the cost of a complex tuner and ensuring the audience is properly propagandists by control of the media.
The earliest British TV sets were one channel as there was only the BBC Alexandria Palace transmitter until 1949 when the West Midlands transmitter at Sutton Coldfield began
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08-02-2022, 10:18 PM
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