That's correct, and the idea behind that is Channel 4. Channel 4 was set up on the basis of a transfer of resources from ITV to support a minority channel, Channel 4.
So a levy on market leaders is designed to support greater diversity. In a strange kind of way, the Government's policy on local TV is doing this too. It's taking money from the BBC to support new local TV organisations.
So the levy is intended to support diversity.