LG 32LS5700 Manual Del Usuario página 40

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
(For LS5700 series, 42/47/55LS5750, 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.