To get a reduction in you TV licence we'll need to get BBC Alba to shut down - I mean who watches it's endless repeats of Rab C. Nesbitt? And then we either need DCMS to close down S4C, or get them to start paying for the BBC programs they use!
Then shut down all the foreign stations, keeping BBC World Service for Johnny who wants to listen to it.
And I think -10 -15% decrease for living in Manchester (or thereabouts) compared to London would see a net increase on comparable living quarters. A move to South Shields would yield even greater increases.