A:Answer You can access your user manual on Vizio's support website, here: http://cdn.vizio.com/documents/m50d1/um-m50d1.pdf. Please ensure that you are using an HD source to achieve the best picture quality. If you still need help, Geek Squad offers ISF-certified TV calibrations to ensure you are getting the best picture possible. You can learn more by clicking on the recommendations here, visiting your local store, or by calling 1 (800) 433-5778.