I am new to the google TV, and it's brilliant! Just hooked it up an hour ago. The Live TV works fine and I can change channels, but I can't change the TV's volume. I'm on the latest Google TV firmware (Just updated) and everything else seems to be fine! I think I may need to connect an IR sensor to the TV, but I don't know where. The TV's model is a Samsung TV (model #PN51E530A3F). When I press the volume button on the google TV controller, it says "Audio System is not Registered". Thanks in advance for help!