I could easily imagine one of the problems could be the BBC not knowing what rights they have to the content. Likely some of it will be stuff they only have lim

I could easily imagine one of the problems could be the BBC not knowing what rights they have to the content. Likely some of it will be stuff they only have limited rights to; donating it to an external project could plausibly get them into trouble. And hiring somebody to check the contracts over 172 websites won't be cheap.