get_iplayer is the tops!
...
Q: Is there proper way to stop get_iplayer assigning genre tags
to the audio files it generates?

I've  failed miserably hacking the perl code get_iplayer.pl
by changing the line:


to

I know this isn't a sustainable way of doing anything but ...
if it worked it would save me significant post-processing work
at my end.

That will work. No idea why it doesn't work for you. Run the following at the get_iplayer prompt to make sure your edit is as it should be:


(Assumes you're on Windows, judging by reference to get_iplayer.pl)

Thanks for the encouragement.
I got it working with an additional one-line edit:


to



Cheers

The additional edit is unnecessary, but I suppose it does no harm.