Originally signed on the air on November 29, 1948 as a primary NBC affiliate on VHF channel 4, it was the first television station in New Mexico, owned by Albuquerque Journal owner and publisher Tom Pepperday, who also owned the AM radio station of the same name (770 AM, now KKOB). Later, in May 1952, the KOB stations were purchased by magazine publisher Time-Life (later Time Inc.) and former Federal Communications Commission (FCC) chairman Wayne Coy. It was Time-Life's first television asset. In 1953, two new TV stations signed on within a week—KGGM-TV (channel 13, now KRQE), which affiliated with CBS, followed by KOAT-TV, which took ABC; DuMont shut down in 1956. Stanley E. Hubbard, founder of Hubbard Broadcasting, bought KOB-AM-TV from Time-Life in 1957, and his heirs have owned the station since. KOB's radio cousins were sold off in 1986 and are now known as KKOB and KOBQ.
Although the KOB radio stations had long amended their callsigns, KOB-TV did not drop the "-TV" suffix until June 13, 2009, when the FCC allowed a limited opportunity for stations to change their suffixes (adding "-TV" or "-DT") or drop them in the wake of the digital transition that was completed the previous day.
Standalone numerical logo
KOB Eyewitness News 4 logo (2010–present); based on the "Eyewitness News" logo used by WABC-TV since 1993.