I have a Mitsubishi tv and I want to add to the sound system but I don't want a full surround system. I was looking at the Samsung HW-E450 40" AirTrack AudioBar with Wireless Subwoofer. It has am HDMI INPUT/OUTPUT and an optical INPUT. My tv only has 3 HDMI which are all being used at the moment by Direct TV box, XBOX 360 and DVD. How would I hook up the sound bar? Would it be easier to buy a HDMI splitter or can the Direct TV go into the sound bar INPUT and then the sound bar into the TV? Also, would my Direct TV remote control program to control it?