Open up the terminal and type:
sudo nano /boot/config.txt
- Use your keyboard arrows to scroll down to this line
# Uncomment the following to adjust overscan. Use positive numbers if console # goes off screen, and negative if there is too much border. overscan_left=20 overscan_right=20 overscan_top=20 overscan_bottom=20
- Change the values of the overscans as described (ensure there is no # before each overscan value). From testing an LG HD TV we set the values to -65 for all overscan values. Different TV's may require different values so it will be a case of trying different values if -65 doesnot work.
- Save the edited file
Press Control-x Press y Press [enter]
- After exiting the editor, restart using the command
sudo reboot