KFNB TV Casper, WY

KFNB (channel 20) is a television station in Casper, Wyoming, United States, affiliated with the Fox network. It is owned by Coastal Television Broadcasting Company LLC, which provides certain services to ABC affiliate KTWO-TV (channel 2, owned by Vision Alaska LLC) and CBS affiliate KGWC-TV (channel 14, owned by Big Horn Television LLC) under separate shared services agreements (SSAs).

The stations share studios on Skyview Drive in Casper, while KFNB's transmitter is located atop Casper Mountain south of the city. Satellite stations at Rawlins and Riverton, and a translator in Douglas extend KFNB's signal. Most of its programming is also rebroadcast on KLWY (channel 27) in Cheyenne, which airs separate station identifications and commercials.

Channel 20 began broadcasting as Casper's third TV station in 1984. Financial difficulties dominated the station's early history. Between 1986 and 1989, First National Broadcasting attempted to buy the station, a sale that languished and eventually fell apart, with the station leaving the air. After being sold at sheriff's auction, the station began broadcasting again in 1990. An ABC affiliate for most of its history, it switched to Fox as part of a three-station affiliation exchange in 2004. Coastal acquired KFNB in 2020.