Samsung Home Theater system, Samsung TV (don't have the model number, I'm at <gasp> work). I can do a test on the speakers from the home theater system, they all work. Slide a DVD in, and "poof", sound through home theater speakers disappears, and I have to run sound through TV, totally worthless sound at that point. It used to work just fine, then one day, it said "Nope, I ain't gonna do it anymore". I just don't understand how they can be working when I do the system check on the theater system, but refuse to work when playing a DVD.