The Art of Prior Art ...The Serendipity File Continued....
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Television Test Patterns
While we're playing with TIVO, it may be useful to recall that there was a time when broadcasting wasn't a 24/7 business. Early on, stations transmitted test patterns such as these when 'off-the-air' to allow technicians to monitor quality, and for end-users to adjust the rabbit-ear antennas for best reception.
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| Thanks to Norm Gagnon, who has lot's of pictures here. | |