Low level poping like dust on a record (if you are old enough to rember record players) just started on TCM's audio just the other day. I heard it in the audio of The "Iron Mistress" that recorded today and "The Maltese Falcon" that recorded yesterday. I don't hear it in any other recordings in may Now Playing list or on other channels so I don't think it is the DVR. Anyone else notice this? The poping is way down in the background. If you have lost your high frequency hearing, you might not hear it.