It's already started
Until recently I could receive ClassicFM anywhere in the area I deliver to, which is about a 5 mile radius around Rugby. For the last few weeks I have noticed much reduced signal strength, causing drop outs and interference in low lying areas, especially under the railway tunnel. This problem is not confined to my employers' three year old van, I get the same effect in my private car, with a ten month old Sony FM receiver. I have reported this to the BBC, who gave me a very curt and, frankly, rather patronising answer, and have also contacted the Department of the Environment, but have so far received no reply. I think that the signal is being purposely degraded to encourage listeners to migrate to DAB, but in my case, it ain't gonna happen!