 In the early 1970s, the stations were purchased by the Regional Broadcasters Group headquartered in Kingston, New York.The FM station's call letters were changed to WZPR as a tribute to Meadville's Talon Corporation which, nearly a century earlier, had become America's first manufacturer of "hookless fasteners" or zippers.While WMGW's format remained the same, WZPR changed to Beautiful Music, and in 1978 changed to its current format