Parental Controls gives you the opportunity to lock content based on rating. To activate these controls, open Settings, then Parental controls.
Click, or press, the Off toggle, next to Disabled, to the On position.
You will be prompted to create a new pin.
Now, you can lock content based on rating by clicking, or pressing, the Unlocked toggle to the Locked position.
Any content that fits the rating criteria that you set will appear with a faded thumbnail and a lock icon.
If you would like to watch one of the locked shows, or movies, click on the program's thumbnail. You will be required to enter your pin to unlock the content.