I got a samsung LCD tv (HD ready) model :LA22B350. I have connected my Tv with my LG 5.1 home theatre system with a cable provided with LG product. when i play dvds & usb on my LG ,sound system is absolutely ok.now i got a cable connection for my TV & want to play the TV shows with sound on my LG home theatre system & not with the TV inbuilt speakers . IS IT POSSIBLE to do so ?? if possible HOW DO I DO that ???