A:Answer Hi! The resolution of the image is determined by the device that sends the signal. For example, if you have a cable box, an Xbox or a computer (as the signal sender), then you will need to adjust the resolution on any of those devices so you can see it displayed on your TV. If you need further assistance regarding this matter, please contact us on the link below and we will gladly assist you.
Viridiana E.
Insignia Support.
https://www.insigniaproducts.com/contact-us