I've used now tv for a long time now. It runs from previously a white box and now a smart stick into a HDMI splitter through my sound bar and into my tv via HDMI. The problem that has started recently is no sound will come out of the sound bar, I get a brief burst of sound sometimes but then the picture goes as well and I have to turn everything off and on again, this problem happened with the white box and the stick. I can only get sound from the tv's speakers but the picture is still going through the sound bar via HDMI. My Amazon prime tv box and blu Ray player both run through the system the same way with no problems, anyone got any ideas?