Constant re-recording of episodes already in library

That is in fact part of the problem here, “repeat airings” is not actually explained properly anywhere.
New obviously only records if the guide data indicates it’s ‘new’, fair enough - but that’s not what everyone wants/needs, so the only other option is “New and repeat airings”. So you select that, but at least in my case it’s then repeatedly re-recording things that are already in the broader library, as well as things it’s already recorded and doing so at a lower quality. I.E. it already knows it has a 720p version, why is it snagging an ‘SD’ version at all?

Even searching this forum there’s a lot of folks who say that if you have ‘repeat airings’ enabled it won’t re-record, and a fair number of folks reporting findings similar to mine that that doesn’t seem to be the case - case in point: Does "New and Repeat Airings" record duplicate episodes or simply allow "previous" episodes as well?

So this boils down to:

  • Have I miss-understood what the ‘New and repeat airings’ does? Empirically: sorta, it does what it says on the tin, just not what I’m expecting (I.E. don’t re-record things it already has)
  • Are the folks claiming that it doesn’t re-record somehow doing something different and/or do I just have it set wrong? From everything I can find no, but the Plex docs don’t seem to cover this super well.
  • If Plex doesn’t actually support this (which I believe is what @OttoKerner is saying here) then is there a way to get something like what’s in Jellyfin and Emby added to plex for:
    image
    to make it super obvious what’s going on for folks?