Step 1: On the TV Home Screen, scroll down to INPUTS and Select Channels
Step 2: Television will display the below screen. Once on this screen, press the menu button on the remote control
STEP 3: Select TV options.
STEP 4: Under TV Options scroll across and select DISPLAY MODE and select your desired display mode Normal, Zoom, Wide, Zoom Wide, Auto
NOTE: If the TV is connected to a cable box and if the settings is unable to change the SCREEN SIZE then contact your Cable Service provider to change the settings