I have a new Soundbase and two sonos one surrounds along with a LG 55EG910V (OLED). It seems that every time a movie or show starts there is one pop, just as the video starts. This only happens with dolby 5.1.... when the input is stereo there is no pop. It's not the worst thing in the world, but it's a little annoying as it happens every time. Any thoughts? Thanks. And yes, I've looked at other threads but this seems more specific as the pop occurs only once at the head of the video.