According to the manual at http://www.dishnetwork.com/dtvpal/do..._withcover.pdf
,Locking Programs Based on Ratings
Your DTVPal supports a variety of ratings categories. These ratings depend on information about the program included by the broadcaster. Broadcasters may use the Age and Content Guidelines, or the MPAA (Motion Picture Association of America) Guidelines.
Entire AudienceIncludes rating categories None, TV-G, TV-PG, TV-14, and TV-MA.
ChildrenIncludes rating categories TV-Y and TV-Y7.
MPAA (Motion Picture Association of America)Includes rating categories N/A, G, PG, PG-13, R, and NC-17.
ExtendedIncludes rating categories Dialog, Language, Sex, Violence, and Fantasy Violence.
To block programs based on rating, use the following steps:
1 Select Ratings Settings from the Locks menu.
2 To easily lock (or unlock) all categories select Block All
or Unblock All.
3 To edit a specific category, highlight the category.
4 For that Category, press SELECT on the highest Rating you want to be viewed without a password. Anything with a rating higher than that will require entering your password before viewing.
For example, if you select TV-G, programs with None or TV-G can be viewed without a password.
5 Select Done to save your changes.
6 Follow the steps in Locking the Receiver to apply the ratings locks.Locking the Receiver
After you set the channel locks and the ratings locks, you must lock the receiver for the settings to take effect. To lock the receiver, select Lock System on the Locks menu.
If you already have a password, enter it using the remote's NUMBER PAD.
Enter a password using the NUMBER PAD on the remote control in the Password field.
Enter the new password again when prompted. Your DTVPal is now locked.