Come on! There are posts about this back to 2004 and beyond. I have not set to a particular station only because often there are multiple shows I want to record that first air at the same time (e.g. Sunday 9pm) So, particularly for PBS, I want to be able to grab it once wherever it's playing. (ch 2 -boston, 11-NH, or 18-RI) I can't just go with the PBS repeat schedule because (maddeningly) they may replay it at, say, 2am on Tuesday one week, but not the next week. Also, I've often missed the original air date of the series, so it's new to me in 2013, but it literally a repeat because the series was originally screened in 2011 or such. Anyway, I've set New and Repeats, All Channels, All Times, and Duplicates NO. I don't delete until the series is finished for the sole purpose of have the DVR see that another recording of the same episode is a duplicate. YET, I still get duplicates. These duplicates have the same title. same description.
When the heck are you going to fix this!? Please! If I go away for a week, it fills my DVR.