I bought a Tivo Roamio Plus and I connected it directly to my Panasonic Plasma VIERA TC-P60ST60 via HDMI. The problem is that the sound quality from the built-in Panasonic TV speakers are horrible. I have a LGDVT418 home theater system (with 4 speakers). I also have an XBox, a Blu Ray player, and a DVD player. What is the best way to set up everything so I can use my LGDVT418 system / speakers?