KETK-TV, virtual channel 56 (UHF digital channel 22), is an NBC-affiliated television station serving Tyler and Longview, Texas, United States that is licensed to Jacksonville. The station is owned by the Nexstar Broadcasting Group; Nexstar also operates Fox affiliate KFXK-TV (channel 51) and MyNetworkTV affiliate KLPN-LD (channel 48) under a local marketing agreement with owner White Knight Broadcasting. All three stations share studio facilities located on Richmond Road (near Texas Loop 323) in Tyler; KETK maintains transmitter facilities located near FM 855 in unincorporated northwestern Cherokee County.