I have an old Sony receiver that has the original pro logic processor and I have enough equipment to do a 4.0 setup in my living room.(Phantom center, 2 surrounds) It will be used for casual TV watching and some gaming. Will cable TV/Xbox 360 send pro logic over the stereo cables? I know Xbox can do PL but I'm not sure if it needs to be one of the newer versions of PL. If not that's OK, I'll just run it stereo. I've got 7.1 in my media room so I'll still get my surround sound fix.