
1) Chicago superstation 2) Chicago-based station 3) Chicago-based superstation 4) Satellite superstation 5) Windy City Jamboree airer 6) Windy City superstation
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https://www.crosswordclues.com/clue/wgn
[AM] WGN, 720 AM, is a radio station in Chicago, Illinois, United States. The station is owned by Tribune Broadcasting (as the company`s sole remaining radio station), and is one of several flagship properties owned by the locally-based Tribune Company, which also owns the Chicago Tribune, flagship television station and the market`s CW aff...
Found on
http://en.wikipedia.org/wiki/WGN_(AM)

Chicago, Illinois (AM/TV)
Found on
http://www.translationdirectory.com/glossaries/glossary122.htm
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