Same recording keeps popping up

[sward 28]

Hello - I'm not sure which DB the recording scheduler uses, but for my metadata I use TVDB which apparently assigns different episode#'s to shows like American Experience and Frontline, and so even though I already have a particular recording, the scheduler doesn't realize this since there's a mismatch in the episode#, and so I will cancel some re-airing of a program, but it keeps just coming up the next day at a different time over and over again. Could we add something like "I already have this episode" or "never record this episode", instead of "cancel recording" which only cancels that one airing?