Hooked up sound bar to HDMI ARC (Audio Return Channel) from TV. It worked. No sound the next day. Had to switch to internal TV speakers until I had time to fix it. Found procedure on internet. To restore audio. Involved unplugging HDMI input and power. It worked. Next day, no sound. Did online chat with LG tech support, fixed it. Worked for a while, then one day, no sound. Did another online chat with LG support. Suggested I go through the same routine. Explained that I had been there, done that, and I wanted something to keep it fixed. Rep then suggested that I check to make sure I was connected to the HDMI ARC. That's when I told him that I had experience in tech support and was going to take this P.O.S. back, and never buy another LG TV. User's recommendation: Don't buy an LG TV.