So, my 3+ year old trusty HR20-700 is fully functional (does everything it is supposed to), but it is functionally lacking in a couple of ways: 1) It is, much of the time, annoyingly noisy. This is not fan noise or even drive bearing noise. Rather, its the noise of the disk drive "garbling" as it writes/reads. It has always done this to some degree but it is worse lately. The odd thing is it does not always make the noise as feverishly as others, but it can be rather intrusive at times. 2) The thing is just getting, at times, very slow to respond to control inputs. This is most noticeable when the disk garbling sounds are most pronounced. (It's kind of like an overtasked older PC running Windows and antivirus software all at once, and you can't get IE or Firefox to launch quickly when they are all dominating the cpu/drive). I might hit the guide button, or type a channel change and the keystrokes might not even register on screen for a few seconds. So, I am thinking a replacement should be called for, as the DVR is simply starting to become a not pleasant experience to interface with. What are my chances of getting DirecTV to think the same way? For what it is worth, I have a tech coming out Friday to install the MRV upgrade components. When he does, I will try and get his read on how the HR20 unit is performing.