Mark Cerniglia

I recently purchased a 65UQ7570 and am having a frustrating issue with HDMI ARC sound control to my LG SH4 soundbar. I have my set top box connected to HDMI 1. Sound bar is on HDMI 2 (ARC). The sound bar works fine for a few days. However, in the 3 weeks we've owned this TV, I've had three instances now where I've gone to bed with the sound working fine, but when I wake up, my HDMI 1 port has spontaneously had its label changed from "Xfinity" (which the TV detects automatically from my STB) to "LG SOUND BAR", even though the sound bar is on the HDMI 2 ARC port. When this happens, I get no audio from the sound bar. I have to physically disconnect the STB to get the TV to reset the HDMI port labels. I'm very frustrated that this TV seems to just randomly change things on its own. This isn't the only audio related issue I have with this TV. I also want the ability to just turn off the internal speakers like other manufacturers do when you are using an external audio device. And, why on earth to they even have the option to have the internal and external speakers playing simultaneously?