KAUT-TV remained a UPN affiliate until September 4, 2006, with the network's Sunday late-night repeat block as the final UPN offering carried by the station. Channel 43 officially joined MyNetworkTV when that network launched the following day (September 5), at which point KAUT changed its branding to "OK 43"—instead of following the "My (channel number)" branding conventions that MyNetworkTV outlined for its affiliates or using a modification of the network's multi-pattern "blue TV" logo—a change that was accompanied by a marketing campaign focusing on the station's history and origins with Gene Autry; KOCB remained a WB affiliate until September 17, before affiliating with The CW when that network debuted a day later (September 18). With the new network affiliation, KAUT became one of the few stations in the United States to have been affiliated with both Fox and MyNetworkTV (both now operated by the Fox Corporation).