LG 42PA4500 Owner's Manual page 207

To❐lock❐system
❐ ❐
SETTINGS❐➾❐LOCK❐➙❐Lock❐System
Permits❐only❐specific❐programs❐by❐blocking❐channels❐or❐external❐input.❐
At❐first,❐select❐Lock❐System❐to❐ON.
•❐ Block❐Channel❐:❐Blocks❐the❐channels❐that❐contain❐inappropriate❐contents❐for❐
children.❐The❐channels❐can❐be❐selected❐but❐the❐screen❐is❐blank❐and❐the❐audio❐is❐
muted.❐To❐watch❐a❐locked❐channel,❐enter❐the❐password.