The aspect ratio setting on your Sharp TV controls the width and height of the picture displayed on the screen. Change the aspect ratio of your TV to better suit the picture depending on the video source. High-definition and standard definition video use different aspect ratios and will affect how the picture is presented on your screen. Even if you can't find your remote, you can use the control panel on the Sharp TV to change the aspect ratio.
Press the "Menu" button on the Sharp Aquos TV's control panel.
Press the "Channel Down" arrow to highlight the "View Mode" option. Press the "Input" button to make the selection and open the View menu.
Press the "Channel Down" arrow to cycle through the aspect ratios. The image on the screen will change according to the setting that is selected. Use the "Stretch Mode" setting for HD video or select the "Smart Stretch" option for standard definition video.
Press the "Menu" button to save the settings.