I remember some years ago being 'phoned up by the BBC with a request for a photo. I had taken some pictures of a children's author for use on book covers and the BBC wanted a picture of him for their magazine. He had pointed them at me.
They asked if I could send them a print and I said 'sure' but they would have to pay £25 to cover costs and copyright for a one-off use (very cheap, I thought). But they baulked and said they couldn't afford to pay that sort of money as they didn't have the budget. End of discussion.
Later I found out that they immediately got another photographer to go round to the author and take some pictures for them - at a cost of £500!
This explains a lot about how the BBC works.