New radio PIDs, more than 8 characters - "solved"

[RS]

>From: Jim web 
>Sent: Wednesday, August 16, 2017 09:58

>I've not encountered any problem thus far, so currently am asking just for
>clarification.

Have a look at World Service programmes from Friday onwards.
http://www.bbc.co.uk/programmes/p002w6r2/episodes/downloads
http://www.bbc.co.uk/programmes/p016tl04/broadcasts/2017/08

>3) If I still need a validation regex string, what should it be and how
>would I make the change?

See
http://lists.infradead.org/pipermail/get_iplayer/2017-August/011020.html
or use the podcast if there is one.