The home theater system has a good sound. Installation and commissioning is easy. The connection to a TV of another manufacturer also works largely good. The on / off functions can be useful coupled: With Tuner, Bluetooth and CD of the TV can be turned off and the home theater system plays music from unchanged. For DVD and Bluray home theater system is turned off with the TV. The shortcomings: The sound can be transmitted from the TV only on the ARC function of the HDMI connection or via an optical cable. That's ok once Unfortunately, my TV does not have optical digital output. So only the ARC function comes into question. Unfortunately there is no way to activate this function if the home theater system is turned on. The television then transfers the sound, but the home theater system will remain in the previously selected mode and you can select only tuner, Bluetooth or Optical Input as the source. The only way is to get a sound: off home theater system. Off TV. TV and wait 10-20 seconds. Then the home theater system will automatically turn on the TV and then recognizes is also in ARC mode and transmits an excellent TV sound. This procedure one must then also so apply if you have previously watched a DVD. Completely impractical and incomprehensible. Therefore the devaluation of 3 stars, I would have given otherwise 5 stars. I hope that this LG brings a software update. If you connect a TV with an optical audio output, the problem should not occur. Another shortcoming: no connection for headphones. Here LG relies exclusively on smartphone connectivity via App. Too bad.