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U.A. Sanabria's enduring claim to fame was the introduction of interlaced scanning to reduce flicker. Western Television sets have 45-line rasters divided into three 15-line interlaced spirals. The technique was not particularly effective at the scan rate of 15 fps, but when electronic TV took over in the mid 30s, interlaced scanning meant the difference between greatly perceptible flicker and near imperceptible flicker.
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