My parents have been experiencing horizontal bars that seem to be scanning upwards regularly. They are using an old-fashioned rooftop antenna for OTA broadcasts and have a DishNetwork system setup too. Am I right to think that it could be a grounding problem causing the bars which look too "organized" to be interference. Should I check to see if the antenna is grounded properly or do you think this is some other problem. It seems to be on most channels although some are worse than others, sometimes it doesn't seem noticeable at all.. Jay ------------------ HUGBEES! My Equipment List Rider in the 2001 Alaska AIDS Vaccine Ride Wanna help?