In some cases, the entire screen might not be visible on the TV. The top/bottom or left/right of the screen might be cutoff. In that case, you need to adjust the screen size to fit your TV screen.
Click on the Settings icon on the screen
Click the DISPLAY option
Click on the HDMI option
Click on the SCREEN ZOOM option
Click the arrows to adjust the screen size. The top/bottom and left/right should display a red border