I would like to set a PIN that is required any time the Apple TV plays content above a certain level. For example, any movies rated R or any television content rated TV-MA, I'd like to require a PIN. In Netflix, you can set a 4-digit PIN for the various ratings levels. My specific issue triggering this research is that I have Game of Thrones in my iTunes library (and visible on my Apple TV). I'd prefer my little boys not be able to watch this content. Is there a way to do this outside of just not having my account logged in to the Apple TV?