ive tried everything I can think of. I have a pile of hdmi cables that ive switched and tested out on other devices like an xbox and my neighbors dish.. right now im using a Philips gold plated cable 4ft. my signal levels have always been good upper 90's to 100 on most. unless I have a bunch of failing hdmi cables or maybe failing hdmi ports on my tv, I don't know what in the world would cause these sudden flare up of issues when the day before everything was fine. this morning, up at 5am and everything is back to normal. no distortions, my apps work again and on demand is working. im leaning towards a failing hdmi tv ports. when the tech brought the last 54 replacement when we turned it on it had the same white lines all through the menu system. he said hes never seen anything like it. but when I turned it on a few hours later everything was fine. it came with 1037. how would a failing hdmi port on my tv or a cable cause dtv services like on demand to stop working? or would it?