Samsung PN64E8000 manual Highly recommend you use your TVs 169 mode most of the time

highly recommend you use your TV's 16:9 mode most of the time.

NNIf you have set Double (à, Œ) mode in PIP (Picture-in-Picture), you cannot adjust the Picture Size.

16:9: Sets the picture to the 16:9 wide screen format.

Zoom1: Provides moderate magnification of the picture. Sides, top, and bottom are cut off.

Zoom2: Provides larger magnification