A true newbie here. i have a Panasonic 54V10 and the Panasonic BT200 HTiB. Cable comes into the house through Scientific Atlantic HD box. Set up is as follows: HDMI connects STB to TV. HDMI connects home theater to TV. Optical cable connects STB to home theater (STB slot). Here's the problem - no sound from TV through home theater speakers. I get great sound & picture playing Blu Ray discs. AM & FM stations also come in loud & clear. I have tried switching ther audio cable over to the TV and the TV in connection on the home theater and still no sound. Any thoughts? It is pretty frustrating having to watch TV w/no sound! Thanks.