hi,hope i am posting in correct place,i have a lg 42la620v-za tv,i have been bought a phillips htb 3520G blu-ray 5.1 home cinema system,the surround sound works with a dvd but i cannot get the tv sound to come through the surround speakers, i am using ver 1.4 hdmi cables and i have tried optical cable between the blu ray player and tv,both hdmi are plugged into the arc sockets,been pulling my hair out all evening,needed to ask for help before i crack up,thanks in advance for any help :-(