KOCB, virtual channel 34 (UHF digital channel 33), is an ABC-affiliated television station licensed to Oklahoma City, Oklahoma, United States. The station is owned by the Sinclair Broadcast Group, as part of a duopoly with Fox affiliate KOKH-TV (channel 25). The two stations share studios and transmitter facilities on East Wilshire Boulevard on the city's northeast side (situated to the adjacent east of the respective studio facilities of the duopoly of CBS affiliate KWTV-DT [channel 9] and MyNetworkTV affiliate KSBI [channel 52], and the Oklahoma Educational Television Authority [OETA] PBS member network).
On cable, KOCB is available on Cox Communications channel 11 (standard definition) and digital channel 711 (high definition) and AT&T U-verse channels 34 (standard definition) and 1034 (high definition) in the Oklahoma City metropolitan area, and on channel 11 on most cable systems elsewhere within the Oklahoma City DMA.
For most of its tenure as an ABC affiliate, KOCB has been among the network's weakest affiliates (this is in stark contrast to KOCO, which had been one of ABC's strongest affiliates). Many ABC shows, such as Good Morning America and World News Tonight, have garnered ratings so low in the Oklahoma City market that A.C. Nielsen cannot even rate them since the sample sizes are too small to generate such a rating. As a result, KOCB has typically placed in fifth place in the Oklahoma City market's stations, behind KOCO.
Even after KOCB became an ABC station, its ratings ranked in fifth place behind the other Okhlahoma City stations. Ratings for the station's news programming continued to disappoint for the next few years, and did not even approach those of KOCO during its latter tenure as an ABC affiliate. In more recent years, KOCB has been more news-intensive, hence its branding since 2016 as "Action News 34."