churches and televangelists. Atypical of most television stations on the air at that time, KSBI originally broadcast on a part-time basis, airing Monday through Fridays from 9:00 a.m. to 12:30 p.m. during a six-month test broadcasting stage. Programming expanded to 9:00 a.m. to 5:00 p.m. by March 1, 1989. The station was exclusively available over-the-air in the market until June 1993, when must-carry rules passed by the FCC that allowed broadcast stations to request mandatory carriage on cable providers went into effect. Cox Cable—whose Oklahoma City system, at the time, only served the city proper and select inner-city suburbs—began offering KSBI on channel 40 (in 1995, Cox moved the station to channel 9, which suffered from co-channel interference from, ironically, the VHF analog signal of CBS affiliate and eventual sister station KWTV, which continued until Cox moved KSBI's basic cable slot to channel 15 in 2007); Multimedia Cablevision—which served outer suburbs including Edmond, Midwest City, Moore and Bethany, all of which are now served by Cox—placed KSBI on channel 33 at that time. In preparation for the addition to Cox and Multimedia, channel 52 adopted an 18-hour daily schedule from 6:00 a.m. to 12:00 a.m.; the station would begin broadcasting 24 hours a day by 1996. During most of the 1990s and early 2000s, in addition to airing local and nationally syndicated religious programs, KSBI also carried a limited amount of secular sitcoms, Westerns and movies, some of which were cherry-picked from INSP (now The Inspiration Network) and FamilyNet. Despite its format, KSBI did not accept or solicit financial support via monetary contributions from viewers. Beginning in the 1990s, KSBI gradually signed on a network of translator stations throughout the state. Eventually, because of this wide relay network, channel 52 claimed to have the largest broadcast coverage area of any commercial television station in Oklahoma; at its peak, its signal was relayed over fourteen translators serving areas within the Oklahoma City market and in markets adjacent to it such as Tulsa, Elk City, Ponca City and Ardmore. It also gained cable (and eventually, satellite) coverage in the Tulsa, Wichita, Amarillo, Lawton–Wichita Falls and Ada–Sherman markets. In August 1999, the station upgraded its transmitter from an effective radiated power of 1,355 kW to a total power of three million watts, after installing a new transmitter antenna atop the broadcast tower on 122nd Street and Kelley Avenue in northeast Oklahoma City. In