Broadcast NewsRadio Newsthe HOT List Polnet Buys WRDZ-AM for $3.5 Million By RBR-TVBR - December 3, 2015 0 Facebook Twitter WhatsApp Linkedin Email The sale of WRDZ-AM, La Grange, Illinois, from Radio Disney Chicago, LLC to Polnet Communications Ltd. has been completed. Please Login to view this premium content. (Not a member? Join Today!)