A television signal receiver device consistent with certain embodiments
has a receiver that receives a digital television signal including a
plurality of unencrypted packets, and a plurality of encrypted packets,
wherein the encrypted packets are of at least one selected packet type.
The at least one selected packet type has packets occurring in a star
pattern approximately situated at an upper center of an image. A
decrypter decrypts the encrypted packets. A decoder decodes the
unencrypted packets and the decrypted packets to produce a signal
suitable for play on a television set. This abstract should not be
considered limiting since embodiments consistent with the present
invention may involve more, different or fewer elements.