KWBT (channel 19, now CW affiliate KQCW-DT) took over as the market's WB affiliate when it bowed on September 12, 1999, carrying The WB's entire prime time schedule (including the few shows that KWHB carried beforehand) as well as the Kids' WB lineup. (For the reasons concerning The WB's prior partnership with KWHB, in preparation for the network's fall 1999 premiere week, KWBT included some returning WB prime time shows that station had declined to carry, as part of an evening catch-up block that aired during the week of September 12.) In August 1998, LeSEA Broadcasting and KWHB were fined up to $12,000 by the Federal Communications Commission for exceeded Children's Television Act advertising limits (which restrict programming time allocated to commercials to 12 minutes per hour on weekdays and 10½ minutes per hour on weekends) during children's programs that aired on the station a total of 47 times between July 13, 1996 and December 1, 1997. In a notice of apparent liability for forfeiture, the FCC noted that the station noted on its last renewal application that it had exceeded the guidelines by anywhere between 15 and 95 seconds during the cited incidents. The station cited in an application for its prior license renewal that the violations resulted from "inadvertence and/or human error stemming from the failure of KWHB's personnel to detect, over the course of more than a year, a computer error responsible for the commercial overages," and issue that the Commission has "repeatedly rejected" as a reasoning for advertising time violations in the past. In 2001, KWHB moved to new studio facilities located on South Memorial Drive (north of East 91st Street) in southeastern Tulsa. On May 4, 1999, transmission lines at KWHB's Coweta transmitter facility were knocked out due to intense lightning related to severe thunderstorms associated with a storm system that produced 66 tornadoes across the central third of Oklahoma on May 3. KWHB's signal was taken offline on May 8, due to a steady decrease in power to the transmission lines, as station engineers were preparing to remove and replace the lines and their internal electrical conductors. On that date, TCI regained access to the station at its northeastern Oklahoma headends after repairs to the direct fiber optic studio feed were completed. KWHB's over-the-air signal returned to the air on May 19. By 2012, KWHB had reduced its secular programming slightly (consisting of sitcoms,