Here are the steps to troubleshoot your Smart TV’s aspect ratio:

1. Check the TV Manufacturer’s website for updated display driver software.

2. Try changing the display resolution of your Smart TV.

3. Adjust the aspect ratio settings on the TV when you are viewing the program that has the incorrect aspect ratio.

4. Check the HDMI cables connecting your TV are properly connected.

5. Make sure the content you’re viewing is of the correct resolution.