No sounds on TV through X1 box?
This just started happening today. I have a 50 inch Vizio V series TV I bought last week and everything has been going well until today when the sound just stopped working. I thought it was the TV, but I my Xbox plays sound just fine. I thought it was the HDMI port, swapped ports and the Xbox still put out sound fine. So I thought it was the cable box, so I swapped cable boxes from another room and the sound works fine. I ended up swapping X1 boxes at my local xfinity store and the sound still does NOT work, even with the new box.. Does anyone know what it could be?