The station signed on for the first time on April 2, 1998, as an NBC affiliate on analog channel 27 with the call letters KNBN-LP. In 2000, Rapid Broadcasting began airing NBC programming on full-power KNBN (channel 21). In October 2003, channel 27—renamed KWBH-LP—became a WB affiliate[2] and carried programming from The CW Plus' predecessor, The WB 100+ Station Group. In September 2006, UPN and The WB merged to become The CW. KWBH-LP joined the new network upon its launch. In 2017, KWBH-LP switched to MyNetworkTV after losing The CW to a subchannel of CBS affiliate KCLO-TV (channel 15).
KWBH-LP went silent in March 2021,[3] ahead of the FCC-mandated shutdown of analog LPTV stations on July 13. Its programming was carried in high definition on KNBN's second digital subchannel. KWBH-LP filed a digital license to cover application on December 16, 2021, indicating that it would rebroadcast KNBN.[4] The station was licensed for digital operation effective February 4, 2022, changing its call sign to KWBH-LD.