Rights and residuals
People seem to forget that people get paid for repeats, under contracts predicated on the assumption that TV would forever be as it was in its mechanism. That is the killer. Moreover, the BBC is already moderately disliked for its onerous contract terms by the independent sector, and (last time I looked) they only ask for two network showing rights. Now, they've been changing these contracts to deal with internet-distributed material, but there will very likely still be issues for the producers' alliance PACT and Equity to agree on, and it's not impossible we might end up with the sort of action that the US is having problems with at the moment.
However, if the entire TV distribution system becomes "we make programmes; you download more of ours, we get paid more of your license fee" across at least the BBC and perhaps with some cultural wriggles ITV/4/5 then you get to redefine your residuals formulae based on the calculated audience figures used to dole out the money.
So: TV Licensing become the keepers of the license fee, audited by BARB/RAJAR, BBC and the other networks highly specialised banks (which they already are, just less obviously so) that independent producers can go to if they want, or both the BBC from in-house sources and the independents can flog programmes/streams directly if they can raise the capital from other sources.
Whither, then, the need for vicious politics? Apart from Stop Microsoft, of course.