Samsung PN51E550 E-Manual page 8

channels from the channeJ
Air/Cable Antenna connection: Try
HD channeJs performing
Program.
Adjust the Cable/Sat box video output
resolution to 1080i or 720p.
picture is distorted: _acro block
s_all block,
ixelization
The compression of video contents
may cause picture distortion especially
in fast moving pictures such as those