The soundbar will turn on when the TV is turned on the ARC HDMI connection is used to connect the soundbar to the TV. I connected my cable box, 4K player, and Xbox to the HDMI inputs on the soundbar and connected the soundbar to my TV's ARC HDMI input. The soundbar powers on with my TV and the volume is controlled with the TV remote. I believe that this is the best way to connect everything. I turn my TV off when switching from one device to another (such as cable box to 4K player). I have found it is easiest to turn off the TV and device connected to it and then turn on the device I'm switching to and TV. The soundbar automatically switches to whatever input connected to the device that I use provided all other devices connected to the soundbar are off. This method also allows streaming apps on my TV to play audio through the soundbar via the ARC connection. After some initial fr I've found that connecting external devices to the soundbar utilizing its pass-through feature and connecting the soundbar to the TV's ARC input works very well as long as I don't power on more than one external device at the same time. The only complaint I have is the soundbar repeating the last function (such as changing the input or volume) every time I push a button on my cable remote or 4K player remote. The only solution I have found for that annoying glitch is using my TV remote to control everything (I have a Samsung TV and 4K player). I haven't used my Xbox yet but I doubt that it will affect the soundbar as it doesn't utilize an IR signal like most home theater remotes. If you have devices from various manufacturers then it might be a good idea to purchase a quality universal remote. Also, I believe that the CEC function on both the soundbar and TV should be turned off when using the connections I've described if you are able to pair your TV remote with the soundbar. Hope someone finds this helpful. I spent many hours trying various setups and reading the experiences of others to figure it out. It would have saved me a lot of time and frustration if someone else explained it to me, hopefully I can save the person reading this from the same experience.