HDMI-CEC is often why your TV turns on by itself, and disabling or tweaking it can stop the problem for good.
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How to install a TV soundbar - Sony HT-CT770
Me and my dad walk through the basics of setting up a soundbar for TV! We hooked up the HT-CT770 via the hdmi pass throughs. The Optical cable didn't work because of the TV/Comcast signal coming ...
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