I have been getting searching for sat signal error messages the last few days when I tune in to specific HD channels the latest DSCHD yesterday wanting to record "In The Shadow Of The Moon" but was still able to watch Monday Night Raw on USAHD. Funny thing is when I do a soft reset red button in front of HR21 everything comes back up. There are no switches involved just the direct lines from sat down to a wall plate with rated barrel connectors to receiver. Could it be the BBC'S?