Samsung UE50ES6300U E-Manual page 115

N
Do not watch in 4:3 format for a long
time. Traces of borders displayed
on the left, right and centre of the
screen may cause image retention
(screen burn) which is not covered
by the warranty.
Screen Fit: Displays the full image
without any cut-off when HDMI (720p
/ 1080i / 1080p), DTV (1080i, 1080p) or
Component (1080i / 1080p) signals are
inputted.