KIEM-TV signed on the air as Eureka's first television station on October 25, 1953. The station was started by William B. Smullin and his company, California Oregon Broadcasting, Inc., who also started (and still owns) KOBI-TV in Medford, Oregon. The station call sign KIEM-TV was a counterpart to the company's AM radio station, KIEM — which stood for "Keep Informed Every Minute". The FM part of a broadcast trio was KRED. (Soon after KIEM-TV began broadcasting, the first stereo broadcast in Humboldt County used the AM station to broadcast the right channel and the FM station to broadcast the left channel.)