A strange thing started happening this weekend with my WHRO signal on 15-1. I am getting a strong signal on both my Hitachi's internal receiver and the one in my Zenith HDR230 but on the Hitachi I am only getting sound with no picture. Has anyone else had problems like this before (or now) and has there been some change at the station that might be causing this? All of the side channels come in fine on both receivers so it seems to be tied to the 1080i signal. Thanks.