based independent to be viable. The station originally operated from studio facilities located along Loop 410, near Ingram Park Mall, on the northwest side of the city. Shortly before its sign-on, the station built a , guy-wired aerial transmitter near Lakehills to house its transmitter. Affiliations with Fox and then UPN As part of a groupwide affiliation deal with TVX, KRRT became a charter affiliate of the Fox Broadcasting Company when the network launched on October 9, 1986. Paramount Pictures acquired a minority ownership interest in TVX in 1989; it would acquire the remaining interest in the company in 1991, changing its name to the Paramount Stations Group. At the time, KRRT was Paramount's smallest television station by market size. TVX had put KRRT on the block in 1989; the station was not sold at the time. In 1994, Paramount entered into a partnership with Chris-Craft Industries—which owned NBC affiliate KMOL-TV (channel 4, now WOAI-TV) at the time—to create the United Paramount Network (UPN), with KRRT serving as the network's San Antonio affiliate; while Chris-Craft Industries was the sole owner of the network initially, Paramount supplied most of its programming (Paramount parent Viacom acquired a 50% interest in UPN in 1996). Subsequently, River City Broadcasting signed an affiliation agreement for independent station KABB (channel 29) to become the market's new Fox affiliate. On January 16, 1995, KRRT became a charter affiliate of UPN, with KABB assuming the Fox affiliation. Later that year, Paramount sold the station to Jet Broadcasting, which then entered into a local marketing agreement with River City. As part of the agreement, KABB took over KRRT's operations. The arrangement was inherited by the Sinclair Broadcast Group following its acquisition of River City in 1996. Jet Broadcasting then sold the station to Glencairn, Ltd. (now Cunningham Broadcasting) in 1997. The family of Sinclair founder Julian Sinclair Smith owned 97% of Glencairn's stock (Glencairn was, in turn, to be paid with Sinclair stock for the purchases). For all intents and purposes, KABB and KRRT were a duopoly in violation of Federal Communications Commission (FCC) rules of the period. Glencairn had owned eleven television stations nationwide that Sinclair operated under LMAs; a later plan to sell five of its stations to Sinclair outright prompted the Rainbow/PUSH coalition (headed by Jesse Jackson) to file challenges, citing concerns over a single company holding two broadcast licenses in one market and arguing that