Have 2 HD boxes. Signal looks strong (On SWM). If I go to a music channel (e.g., 802) on main TV, the music annoyingly "SKIPS". The same music on the 2nd TV (at the same time) does NOT skip. The sound from the 2nd TV is directly from the TV. The sound on the main TV is from an attached soundbar. HOWEVER, when on any NON-Music channel on the main TV with the soundbar, there is NO audio skipping ???