Sinclair pioneered the concept of the local marketing agreement (LMA) in American television in 1991, when it sold WPTT to its general manager Eddie Edwards (founder of Glencairn, Ltd., the Sinclair-affiliated licensee that would eventually become Cunningham Broadcasting) in order to purchase fellow Pittsburgh station WPGH-TV to comply with FCC ownership rules of the time that prohibited duopolies, while agreeing to allow Sinclair to retain operational responsibilities for the station. However, while LMAs would become an integral part of the company's business model in subsequent years, Sinclair's plans to acquire KOKH-TV in Oklahoma City through Glencairn, which would subsequently attempt to sell five of its 11 existing LMA-operated stations to Sinclair outright in turn (with Sinclair stock included in the deal) was challenged by the Rainbow/PUSH coalition (headed by Jesse Jackson) to the Federal Communications Commission (FCC) in 1998, citing concerns over a single company controlling two broadcast licenses in the same market in violation of FCC rules. The coalition argued that Glencairn passed itself off as a minority-owned company (Edwards is African American) which, since the Smith family controlled most of the company's stock, was technically a Sinclair arm that planned to use the LMA with KOKH to gain control of the station and create an illegal duopoly with KOCB. In 2001, the FCC levied a $40,000 fine against Sinclair for illegally controlling Glencairn. Sinclair became a publicly listed company in 1995, while the Smith family retained a controlling interest.