The purchase of WCAU by CBS in 1958 prompted Zacherle to leave Philadelphia for WABC-TV in New York, where the station added a "y" to the end of his name in the credits. He continued the format of the "Shock Theater", after March 1959 titled "Zacherley at Large", with "Roland" becoming "Zacherley" and his wife "My Dear" becoming "Isobel." He also began appearing in motion pictures, including "Key to Murder" alongside several of his former "Action in the Afternoon" colleagues. A regular feature of his shows continued to be his parodic interjection of himself into old horror films. He would run the movie and have "conversations" with the monster characters. He kept his "wife" in a coffin on stage. His co-star was in a burlap sack hanging from a rope. The on-air conversation consisted of Zacherle repeating the words he heard from the sack.