Changes at BBC Resulting in PVR Duplicates

[Budgie]

I have a number of programmes set up pvr which is run as cron job each 
night.  One of the programmes is The Early Music Show.

I save both the full broadcast .m4a version which is titled as "The 
Early Music Show" and the mp3 podcast abridged version which has been 
titled "Early Music Show"

I have just found about 180 no.  .mp3 files entitled "The Early Music 
Show" in my recordings directory.  These appear to be duplicates of the 
original .mp3 downloads but with the different title and pid.

Anybody understand why this might be or have the same situation?  I ask 
because I also have "In Our Time" in pvr list and there are rather a 
large number of podcasts available for this programme.   At this rate I 
could be exceeding any fair usage policy if I had one!

Budge