My Tivo Premiere started changing screen resolution about 6 weeks ago. I compare it to my old Windows XP screen when the resoultion decreases causing all of the characters to look larger than they normally would. Like 600 x 800, etc. Only about half of the normal high def image is view-able. I have to reset the box to correct the problem. If I didn't know to press the thumbs down 3x, then press the enter button to reset, I would be stuck. As I cant see that part of the instructions on the low resolution screen. I have had to reset 2x tonight watching the superbowl. The screen only shows the left half of the field. The right half of the field is out of the picture. Thanks for suggestions.