I'm using Vudu on our TiVos and want to setup a purchase PIN that would require the pin for ANY purchases. I know how to setup the PIN, but I'm confused on the ratings. Do I select ALL? Or do I select R and that would cover everything?

Basically I need a PIN for ANY purchase - movie, TV, rent, anything.

We redeemed the code for the complete Batman TV series. The issue is, when you do into it from the Tivo, you get the option to Buy each season. I guess the redemption just added each of the 120 episodes. I don't want my kids accidentally clicking Buy on a season when we already own everything.