Horizon Media announced that MAJA MIJATOVIC has been promoted to senior national radio buyer and that EILEEN CASEY joins the company as a national radio buyer. Mijatovic advances to senior national radio buyer, up from national radio buyer. She began her media career when she joined Horizon Media in October 1998, was hired as an assistant network radio buyer and was promoted to buyer in July 2000. Casey comes to Horizon from MediaVest where she was most recently a radio buyer. She spent two years at MediaVest as a network radio broadcast assistant before she was promoted to buyer.