LG 42LB6300 Owner's Manual page 40

The model and serial number of the TV are located
on the back and one side of the TV.
Record them 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.
Refer to ENERGY STAR.gov for more
information on the ENERGY STAR program.