Hi Guys, We have a crappy Turk/Trek outdoor antenna with the usual splitters and the like so we can use the same co-ax for dish and OTA signals. Our HD signal is phenomenal, but we aren't getting *any* sound. We've had occasional problems with our set (Mitsubishi 52", mid range set with built in HDTV tiner - platinum series?) losing sound, but now we cannot get any sound with HD signal, it's fine with the other inputs. Any thoughts on what could be wrong? I figured that lack of sound would be accompanied by signal degradation as well? Thanks!