roku Smart 4k 32" 2.0 4k soundbar. It works great out the box the only issue I'm having is the at the red button that turns off the TV doesn't, it just goes to home like the home button. I can't figure out in the settings to adjust this. I have other roku devices and they all can turn off the TV without issue what am I overlooking or doing wrong. Also the TV model is the samsung un55h6203
The Onn Roku Smart soundbar remote is IR, the tv power and volume keys aren't programmable for different brands of tv, the commands never change. They're Roku commands that when the roku sees them it initiates hdmi-cec signal that is sent over the hdmi cable, in which every brand of tv if it has hmi-cec feature responds to them no matter what brand of tv you have. So go into the menu of the samsung and refresh the cec devices attached to it.