Wonder if any one can help. I have just purchased the beam gen2 I have a Roku streamer approx 6 years old and a Panasonic txp42st30b with hdmi arc that's also about 6/7 years old. I know my Roku can play 5.1 as I had it setup on my old amp. Issue is whenever I set it to play anything other than stereo it doesn't work. I hear the 'click' when scrolling through the menu but when I play the actual program I get nothing unless I set audio output to stereo.