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RADIO

Networks and call letters of stations are full caps, no periods or spaces:
            CBS
            radio station WGMS
            VOA (Voice of America)

Without call letters:
            American Broadcasting Company
            Public Broadcasting Service

The names of radio programs appear in italic without quotation marks:
            WPEG's popular program Macho Man
             listening to A Prairie Home Companion

Capitalize radio when part of a formal name:
            Radio Moscow
            Radio Liberty
            Radio Free Europe

Lowercase when used descriptively after a name:
            Havana radio