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WDIV-TV (channel 4) is a television station in Detroit, Michigan, United States, affiliated with NBC. It serves as the flagship broadcast property of the Graham Media Group subsidiary of Graham Holdings Company. WDIV-TV maintains studio facilities on West Lafayette Boulevard in Detroit. As such, it is the only major television station in the market with offices and studios within the Detroit city limits, while the market's other television stations are based in Southfield (WDIV's transmitter is, however, located on Greenfield Road in Southfield).