Art Timko is retiring after 42 years at WEMU, Eastern Michigan University’s pubradio station. Timko, 64, started at WEMU as a student in January 1968, when he enlisted served in Vietnam. He returned in 1970 for graduate school, finished that year, and started working at the station again. “I was hired in August of 1971 as a producer and have been here ever since,” he told AnnArbor.com, adding that he has no regrets about working at just one station for his entire career. Molly Motherwell, the station’s general manager/marketing and development director, will be interim executive director during the search for Timko’s replacement.