The first local marketing agreement in North American television was formed in 1991, when the Sinclair Broadcast Group purchased Fox affiliate WPGH-TV in Pittsburgh, Pennsylvania. As Sinclair had already owned independent station WPTT (now MyNetworkTV affiliate WPNT) in that market, which would have violated FCC rules which at the time had prohibited television station duopolies, Sinclair decided to sell the lower-rated WPTT to the station's manager Eddie Edwards, but continued to operate the station through an LMA (Sinclair eventually repurchased the station – then assigned the call letters WCWB – outright in 2000, after the Federal Communications Commission began permitting common ownership of two television stations in the same market, creating a legal duopoly).