radio

in the united kingdom, the term "public service broadcasting" refers to broadcasting intended for public benefit rather than to serve purely commercial interests. The communications regulator Ofcom requires that certain television and radio broadcasters. 

1.how many NATIONAL radio stations do the BBC operate? 11

2.how many REGIONAL radio stations do they operate? 40

3.how are they funded?  tv licences 

The radio 1 audience is clearly addressed by presenters that are close to the age of their main listeners demographic of 15-29  year olds and it should also provide some programming for younger teenagers.