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Hi guys, new here at the forum, although I have done research for tv's here in the past. I've got the Panasonic 65" ST30, had it for a few months with no issues. Since day one, when watching any movies or music from my computer (hooked up through hdmi) ,the volume fluctuates. It did this on my older tv as well, I assumed it was the computer or windows. Recently this has started happening on the built-in Netflix app on the tv itself. It never used to do this, I didn't notice it start happening until my tv did an update a couple of weeks ago. Has anyone else run into this issue? I searched but couldn't find anything. I experience this fluctuation through both the tv speakers, and the soundbar (hooked up through optical cable).