Samsung PN51E550 E-Manual page 83

+nput the TV+ Se+ect the
and then adjust the sett+ngs+
+ /}!+ +++++++
}i _ ++++ ++++
if the broadcast signal received by your
TV is weak, you can activate the D g_ts_
feature to reduce any static
and ghosting that may appear on the
screen.
analog channels, displays signal
strength.