I am looking at buying a Samsung soundbar for my Samsung TV I understand HDMI ARC is best for controlling volume and off/off. This soundbar only has optical and Bluetooth From what I can work out, as they are both Samsung the TV remote may control the volume on the Soundbar but it still won't turn the soundbar on/off. Is this correct? I generally turn my TV off on the main power button so clearly it would be easier if it was all linked. Should I hold out for another soundbar with HDMI ARC?