Hi i have a sony bravia and i am kind of using it as my living room monitor. I am able to see my computer screen on the tv. but no sound, is there anyway i can enable the sound through my tv speakers. If not i am a new at this kind of stuff. Would you please help me enable the sound. so i dont have to use my small speakers and headphones to listen to music, or watch movies or little clips on youtube. Thank you.