Behind the Yoi: The Life of Myron Cope, Legendary Pittsburgh Steelers Broadcaster - Hardcoverby Dan Joseph (Author), Elizabeth Cope (Author) Myron Cope was the color commentator for Pittsburgh Steelers radio broadcasts from 1970 to 2005, the second longest serving team broadcaster in NFL history. At the peak of his popularity, an estimated 50 percent of Steeler fans turned down the volume on their TVs so they could listen to the radio as Cope, in his one of a kind scratchy, raspy voice, barked out phrases like "Yoi" and "Okle dokle," often