WHBF-TV (channel 4) is a television station licensed to Rock Island, Illinois, United States, serving as the CBS affiliate for the Quad Cities area. It is owned by Nexstar Media Group alongside Burlington, Iowa–licensed CW owned-and-operated station KGCW (channel 26); Nexstar also provides certain services to Davenport, Iowa–licensed Fox affiliate KLJB (channel 18) under a shared services agreement (SSA) owner Mission Broadcasting. The stations share studios in the Telco Building on 18th Street in downtown Rock Island, while WHBF-TV's transmitter is located in Bettendorf, Iowa.