We have 3 HR24s we got in late 2013. In the past few months, the one in our media room has been having more and more audio drops, either briefly or about 15 seconds. They all recover on their own and the drop does not repeat if we rewind a little and replay. Here's what I've tried so far and here's what I've learned: 1. The glitches are HDMI related for sure, since I plugged headphones into the L-R audio cables. My amp, which is just over a year old, kept having the sound drops while I didn't hear them any at the same time through the headphones. 2. Turning Dolby Digital off causes the audio drops to go away but, of course, the sound is awful with it off. I would never listen to TV that way. 3. Swapping DVRs did not help. They sound drops kept coming. 4. I plugged the DVR into a different input on amp, and I got a brand new HDMI cable. Neither of these helped. 5. Many times tried rebooting amp, DVR, powering off, etc. No change. What I haven't tried yet is going in via digital optical or getting a different amp. Has anyone done either of these (optical or amp swap) or anything else to improve or eliminate the problem?