I have a Panasonic Plasma TV and just got the HD Tivo the other day. When I'm watching analog TV I get white jumping lines at the top of the screen. I've tried different resolution and unable to get the lines to disappear. I'm using the HDMI Cable to connect the Tivo to the TV. I have checked the book for the TV and Tivo and found nothing on moving the screen. Any help would be great.