LG 47LS4600 El Manual Del Propietario página 32

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.
MODEL
SERIAL
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.