LG 42PM4700 Owner's Manual page 44

The model and serial number of the TV is
located on the back and/or one side of the TV.
Record it below should you ever need service.
For inquires or comments, visit www.lg.com or call;
(For PM4700 series/50PM6700/50PM9700 USA, Canada,
Mexico)
This product qualifies for ENERGY STAR in the
"factory default (Home Use)" setting.
Changing the factory default settings or enabling other
features may increase power consumption that could
exceed the limits necessary to quality for ENERGY STAR.
USA, Consumer User
USA, Commercial User
CANADA