Would it work with my weeks-old Samsung 55" uhd tv?
Would it work with my 65" curved tv?
Your TV’s should work with it. As long as they have a “optical audio out” port, they should be fine.
Are the rear speakers battery-powered?
I hope to God Samsung has not produced a battery powered set of rear speakers that also require the power from using Bluetooth. Has anyone heard the wireless surround speakers to give an opinion on quality?