There is no such thing as
liberal programs left on US AM mediumwave. They're all owned by Clear
Channel....

no they're not. There's at least three different radio stations on the AM
mediumwave band in my area that are NOT owned by clear channel.

And those three stattions are owned by three different companies.

And there's probably more I can pick up that are not owned by clear channel,
although clear channel did buy about half of te radio stations around here, and
another company bought about the other half.