If your television has a picture but no sound, the cause can be fairly straightforward, but chances are, you probably just have it on mute. What if the opposite is true, though, and the sound is fine, but no picture is playing? That’s a slightly more worrisome scenario, considering there’s no magic button on the remote that kills the visuals of your TV without shutting it down completely or changing the input (which would, in turn, also turn off
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