Equipment: TV - LG LK520, TV Source - DirectTV model # C41W-100, Movie/ Audio Source - Samsung HT- E5500W. I currently have the DirectTV HDMI (out) to LG HDMI 1 (in) and the Samsung HDMI (out) to LG HDMI 2 (in). The Samsung supports ARC but the LG does not. The DirectTV has 1 red audio port. Please help I've been working on this for awhile now.. thanks for your time!