On June 4, 2010, LIN TV entered into shared services and local sales agreements to operate CW affiliate WIWB (channel 14, now WCWF) as part of a deal involving LIN and ACME Communications-owned stations in markets where both companies owned stations. WLUK began to provide technical, engineering, promotional, administrative and other operational support services for WIWB, with advertising sales services under a related but separate joint sales agreement. That station moved its operations into WLUK's studios that August. LIN would purchase WCWF outright in April 2011, under a failing station waiver (an indication that the station was in an economically non-viable position, which permitted a duopoly even though Green Bay has only seven full-power stations, one fewer than that required by FCC rules to legally permit a duopoly between WLUK and WCWF if both were economically viable), creating the Green Bay market's first legal television station duopoly.