Parental controls are a great way to lock content based on ratings. To activate Parental Controls, visit your Settings page, then, select Parental controls. Start by clicking Enable.
Next, create a unique and secure passcode.
Lock content based on rating by simply checking the appropriate box.
Any content that fits the rating criteria will appear with a faded thumbnail and lock icon.
To unlock locked content, click on the TV show tile and enter your secure passcode.
If your Sling TV application does not look like the experience displayed above, try updating the Sling TV app on your Roku. To learn how to do so, click here