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Insignia support, there isn't a display option for the Fire TV app. It only works if youre using a different input like hdmi.
Sorry, there was a problem. Please try again later.Hi there. To change the aspect ratio on your Insignia™ 50" Class F30 Series LED 4K UHD Smart Fire TV, hold the Home button on your remote for about 2 seconds, scroll down to "Display" settings, turn "Auto Aspect" off, select "Picture Size," and then choose your preferred size. If you need any more help, just let me know! Ivy | Insignia Support
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