are there any other radio stations in britain that do audio?

Bout time that changed, a audio drama radio station surely a Eureka moment for some executive.

There was a commercial digital radio station that audio for while, however they appear to have gone out of business.

And in these days of digital downloads, podcasts etc, I'm not actually sure it is really needed or desirable. The overall sector is growing healthily, as witnessed by BF, Audible, Bafflegab, etc

I don't think radio is needed as an outlet, I think the sector as a whole would move forward and expand from where it is without the need of another outlet.