This is bugging me because I still cant fix it as of now.Have my setup like this:Cable Box HDMI Out to Co-Star. Co-Star HDMI Out to TV. Have the TV hooked up to my Phillips HTS3372D DVD player/home theater.I get surround sound off the TV through the Co-Star without an issue. If I watch something on YouTube or something like thatI only get sound on the TV. I disconnected everything 3 times and still cant figure it out.I Reset the box, checked everything I can think of and cant figure it out. The home theater has audio inputs and just an HDMI out.It did work 1 time, but then the TV speakers wouldnt work with the surround sound on. I have that fixed but no sound through thesurround sound using the box's audio. Movies, YouTube and stuff wont have any sound unless I shut my surround sound off. If I leave it on,I get the cable box sound and nothing coming out of the Co-Star.Any ideas??