KOCO-TV, commonly referred to as "KOCO 5" or "Eyewitness News 5" is the ABC affiliate in the Oklahoma City television market. The station is owned by Hearst-Argyle Television, Inc., but uses "Ohio/Oklahoma Hearst-Argyle Television, Inc." as their end tag during their newscasts, the same licensing purpose corporation as sister Cincinnati, Ohio station WLWT.

The station broadcasts its analog signal on VHF channel 5, and its digital signal on VHF channel 7. On cable, KOCO-TV can be seen on channel 8 on Cox Oklahoma City and on channel 5 on other Cox systems in Central Oklahoma. The station is also available to DirecTV and Dish Network customers within the Oklahoma City market.

KOCO-TV also serves as one of four default ABC affiliates for the Sherman-Ada market (along with KSWO-TV, Lawton-Wichita Falls; KTUL-TV, Tulsa and WFAA-TV, Dallas-Fort Worth) since that market currently lacks a ABC affiliate of its own, as the market's former ABC affiliate KTEN became an NBC affiliate in 1998. KOCO is the sole ABC affiliate available to cable TV viewers in Ada, Oklahoma, the former home city of KTEN, which now originates in Sherman-Denison, Texas.