A:AnswerI’ve used both, currently using optical. HDMI May be overkill since it can also carry video. Plus the optical cable is included.
You don’t get the ARC function with optical, but my cable/TiVo remote picked up the power and volume control anyway.
A:AnswerI am not sure about the reciever , I only saw one output on the bar but it connects to the tv just fine , it comes with the digital output cord. Sound is great too
A:AnswerMake sure your hdmi is in arch on th sometimes the arch plug is not hdmi 1 so make the hdmi is in right plud outlet. You may have to do a factory reset
A:AnswerPress the button on top of the sound bar that has square with an arrow inside of it and that should reset it back, you may have to do it a few times.
JJ