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Its not as positive a development as it first seems. The BBC is too thinly spread in too many niche areas and although it has a Global track record of quality, the real money gets spent on core audience grabbers... Strictly, QI etc.
What they are probably hoping for, is to stumble onto something that requires little investment but has a ready made or established audience potential. True risk is long dead in the Corp for good reasons, whch is why only a select clique of production houses get to work on TV and Radio content.
Better the Devil you know, as it limits the risk factor.
A more overt concept thief if Endemol. They have a team who's work is to research and then copy anything remotely innovative. They suck the life out of it first of course, but its proved a succesful formula so far.