Samsung PN51E6500EFXZA - Manual (Page 213)

reset to Off . When you turn your TV
on, you must turn PIP on again to
watch in the PIP mode.
N You may notice that the picture in
the PIP screen becomes slightly
unnatural when you use the main
screen to view a game or karaoke.
N PIP does not work when the 3D
function is active.
N PIP Settings: The picture from the
external video source will be in the