I have an LG Soundbar that the only ports are 2 optical inputs, and an audio port for like an mp3 player. I have successfully hooked the soundbar up to the TV through the cable box and Optical Cable, however I want sound from the DVD - which does not have an optical cable output, only 1 HDMI (which currently goes to the TV) and a coaxial. How do I do this. I thought I could use the TV like a receiver, but no optical output on the TV??