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  1. Question about SD/HD channels with LED TVs

    HDTV: High Definition Television (LCD & Plasma)
    Hello, I have a Vizio LED TV (2016 D-Series model) as well as cable TV (Cogeco in Ontario Canada). I noticed that when I go from an SD channel to an HD channel or visa versa, my TV goes blank for a second. I was just wondering if that "SD/HD switching" is harmful for the TV (hard on the TV set)...
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