I am having the same issue on my replacement Genie after only having it for about 4 months. I already went through the problem of having the Genie replaced and lost shows on the DVR. Apparently a known issue already even with the replacement with pixelated recordings....waiting for that fix. But I have 2 other older recorders...neither are having recording issues. I almost wish I had a 3rd OLD style recorder. This sound is now starting to cut out, just started happening over the past few weeks. Maybe the supplier is not reliable.
If I have to replace the DVR a third time I am going to scream because I lost a LOT of recordings when I had to replace it the 2nd time and now I have a LOT of new unwatched shows. Maybe DirecTV can allow those with this issue to use 2 Genies.....or maybe they find a reliable replacement. Please. This is getting ridiculous and I do know they are working on problem #1 but now problem #2 is the sound cutting out. Maybe get a good TIVO machine? Fingers crossed....might have to go to Comcast if not resolved by later this year.