I have a new Samsung 65KS8000 UHD TV. I am trying to get it to work with my Panasonic SC ht740 home theatre. The Panasonic has a HDMI out port which is connected to the HDMI(arc) on my TV. I get sound and the DVD player works when I put it on this port. However I can't get sound sound to work with the TV and other devices(Xbox OneS, PS4). Any advice would be greatly appreciated!