sentences:  Midland-Penetang Broadcasting Ltd. opened CKMP 1230 AM on July 1, 1959 with studios at 196 Dominion Avenue in Downtown Midland.The "MP" in the call letters was for the towns of Midland and Penetanguishene.CKMP was home to many well-known announcers, including Jim Van Horne, Brian Henderson and Dan McLean.