The station is currently owned by TelevisaUnivision, via its division Uforia Audio Network through licensee Tichenor License Corporation.

[1][6] The station was owned by North Shore Broadcasting, and its call sign stood for its president Edward A.

[2] In 1970, the station's transmitter was moved to the top of the new John Hancock Center in Chicago, with its ERP reduced to 6,000 watts.

[8][9][10][11][12][13] The station also carried programs from local schools, community organizations, and Northwestern University.

[7] The station also broadcast background music to stores and other businesses, with ads removed for subscribers.