Hi. I have a 55inch LG TV 55uf680t. I have connected my Samsung surround system to the hdmi port 1 as well as a digital optical cable.
When I watch tv, movies from my USB or cable tv, I get full surround sound.
However when I watch YouTube clips from the lg app, only the front speakers work. I have tried different videos and even a surround sound test from YouTube videos and the rear speakers don't work. Any suggestions?
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