...went through 5 of those PVRs in three months, Pattern yes no one makes a quality product anymore...
I see a different pattern.
As I mentioned earlier in this and other threads, whenever someone goes through several STBs, the issue is very unlikely to be with the STB, but rather the environment the STB is in.
Either the connections are poor, the signal is poor, or the equipment is in an environment that is not appropriate (too hot, inside enclosure, dust, etc), or the equipment is abused, or there are power spikes or static electricity, etc. I'm not saying which it is and for which person, however when anyone goes through lots of STBs, it's not likely the STB itself that is causing this.
No STB is perfect, but one needs to understand the underlying cause of an issue and not replace STBs "hoping for the best" when the underlying issue has not been resolved. If the issue is with the firmware, then the user needs to decide if he can live with the issue or needs to switch providers and get used to a different set of issues.
I agree with ScaryBob's comment earlier. 95% reliability is not enough. However, to expect more than say 99.9-99.99% reliability is unrealistic, since all electronics that run on firm/software have some issues.