A:AnswerOn your tv, go into the audio settings and change the output to optical. This will work if you connected via the optical cable.
You volume will then go through the tv to the sound bar.
A:AnswerThe display screen for this model is behind the speaker mesh on the front of the speaker on the far right side. A little hard to read but it serves its purpose.
A:AnswerThis system has a built in blue tooth mode so I believe you could do so. Samsung sells a 2 speaker set that turns your system into 5.1. Place 2 speakers in another room along with another blue tooth woofer and that might work.