Scan in any channels using "Single Satellite Search"
Note the polarity of channel either V or H - - - go back to "Single Satellite Search" and change the Polarity to the opposite of whatever channel you were watching.
Now when you go back to the channel it will say - - - "Notice: No Signal".
if you change back to Auto or the Polarity of the channel - - - the channel will appear again.
i'm running HDVS54012-1108249A0 2012-8-23
Thus I don't have the very latest firmware so this may have already been fixed.
Note the polarity of channel either V or H - - - go back to "Single Satellite Search" and change the Polarity to the opposite of whatever channel you were watching.
Now when you go back to the channel it will say - - - "Notice: No Signal".
if you change back to Auto or the Polarity of the channel - - - the channel will appear again.
i'm running HDVS54012-1108249A0 2012-8-23
Thus I don't have the very latest firmware so this may have already been fixed.