I have had an HR20 for over three years. Lately, I have noticed that certain channels (Sat and OTA) have hiccup fades. It seems to be just the locals, and like I said, it doesn't matter if I am on the sat or OTA channel. By "hiccup", I mean the picture freezes for a second, the audio stops, and then it starts up again. Often times associated with massive pixellation, but again this is only for a second or two. Signal strength for all transponders at in the high 80/low 90s. By the way, I am in the Hampton Roads area of Virginia (that's Norfolk/Viginia Beach to you outsiders). My other receiver (an R15) never has this problem. I therefore suspect the receiver may be going out. Anyone else seen problems like this? Can it be fixed, or is it time to "upgrade"? And I put "upgrade" in quotes because I now see that the newest DVRs don't have the OTA tuners! Whose bright idea was that?!?! So I gotta get the AM21 to have a chance to get my OTA locals, if I want them. Sure, pretty much every channel in this area is available through D*, but I think the PQ is better with OTA. And (in theory) it doesn't fade in the rain as quickly. That's a big deal hear because in the spring and summer, we get some wicked rain. So, tell me... if I get the new HR23 and AM21, is the user experience pretty much the same as what I am used to with the HR20? That is, the OTA channels show up in the guide, I can program the DVR to record off them, recorded shows show up in the same play list, I don't have to connect the AM21 to a separate input on my TV...the whole thing. What, if anything will be different?