Many codes enable remote to control vol up/down but none of the codes shuts the soundbar on/off. The tech who visited said it can take a while for new codes to be found and released. That stinks. Also, although my TV is only one year old and has ARC, I was not able to hook it up using ARC. Trying resulted in no sound at all and, yes, I changed all of the TV settings to enable ARC. The ARC set up is not simply plug in an HDMI. It was tedious trial and error and in the end I could not use it. Now using just the optical. Sound is fine but I understand ARC might have been better.
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