Depending on the cable box and their remote control manufacturer, codes may differ. Usually, programming the remote will require a 3-digit, 4-digit, or 5-digit code. Please try the following codes, one at a time, until the remote control works with the VIZIO TV: 627, 502 (3-digit); 0030, 1758; 0178 (4-digit); 10178, 11017 (5-digit).