 The two outlets share studios on West Stratton Drive in suburban New Berlin; WIWN's transmitter is located on North Humboldt Boulevard in Milwaukee's Estabrook Park neighborhood.Although the station mainly serves the Milwaukee area, it is officially assigned by Nielsen to the Green Bay–Appleton media market due to its city of license residing in a city in the Green Bay market.The station first signed on the air in 2000 as WMMF-TV, which carried programming from FamilyNet, under the ownership of Pappas Telecasting.