P61960 picture to big for screen

I was tring to remove the concave off my screen and came across a setting where you can make the picture larger or smaller. On the TV, not the remote, press and hold the menu button, press and release the power button, press and release the volume up button and release the menu button. P0 and V0 will be displayed on the screen press the volume up button until the V0 is V76. Press the channel up button until P0 is P11 and press the volume up/down button to make the picture larger/smaller. If you need to center the picture press the channel down button until P11 is P10 and press the volume up/down button to center your picture. I hope this helps