When a digital data transmission such as a digital television transmission
is received by a receiver (100), the receiver attempts to locate parental
rating data for a program in the transmission for a home country or
jurisdiction (105, 220) in which the receiver is located. If the home
jurisdiction rating data is available, it is used to control blocking of
the program (270). If the home jurisdiction rating data is not available,
rating data is obtained from the transmission for a foreign jurisdiction
to control blocking of the program (270). If ratings for multiple foreign
jurisdictions are available, the highest, most strict rating (240), may
be used to control blocking of the program.