By the way, you said that your 1Ps were not recording "consistently", but you did not give any further details on what that means. I thought I would add that this might simply be part of the wonderful garbage included in the current code from Bad_Rovi called TE4.
I have MANY 1Ps that do not record consistently on the one Bolt I have running TE4 - primarily for old TV series that regularly show on channels like H&I, but also on PBS. I usually have those 1Ps set up to record new &reruns, and keep ALL episodes, and sometimes they just stop recording.
Checking the history shows the lie that the episode was a duplicate. In one case, I found that the 1P would not record any episode with real episode numbers and information, but it WAS still recording the episodes that were being listed with only generic program titles! If anything, those "generically" listed episodes should have been the ones skipped as "duplicates", but the opposite was happening. In those cases, changing the 1P options to record Everything gets the recordings going again, but at the cost of sometimes really getting duplicate recordings. In other cases, I found that actually deleting all the existing recordings some how triggered the 1P to start recording properly again; apparently something about the last one in the recorded list was telling it to just stop all future recordings.
There is also a known bug where some 1Ps that are set up to keep only 1 episode (but delete as needed for space), such as maybe trying to just record today's news programs each day, will incorrectly not record many new episodes because it lies and says the KAM limit was already reached.
These are clearly bugs in the Rovi code and/or crappy errors in their now terrible guide content, but they have no desire to look into them or fix the problems.