Some radio shows missing from search/pvr, however can be downloaded if URL specified ?

[Morgan Cox]

Hi.

Although most shows I search for I find (either via cli search of
PVR), I am unable find some (either via cli or PVR) - I have refreshed
the content BTW.

An example is

http://www.bbc.co.uk/programmes/b04ynlzn

- Gilles peterson.

If I search for gilles or peterson I see nothing.

However if I use the command

get_iplayer --type=radio http://www.bbc.co.uk/programmes/b04ynlzn

It downloads the program...

Why doesn't it find that program (several others I search for are found.)

I am using Linux btw.

cheers