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Published on Oct 14, 2012
Digital signal has a phenomenon called cliff effect in which if the signal is above the cliff effect the picture is perfect but below the cliff effect no picture at all (note when I lowered the signal). If you live in a far away rural area in which in analog you can still received a degraded snowy picture but still watchable, in digital either you may get a perfect picture or no picture at all. This video is about digital cliff effect to explain why some people have positive feedback saying the picture of their TV significantly improved on digital while others were complaining that they can't get any signal at all.