William W. Booth, doing business as the Big Bear Broadcasting Company built KTOT, a 250-watt daytime-only station, in 1964.

KCAA had carried programming from Air America Radio, one hour each per weekday of Al Franken and Randi Rhodes, from the time of its founding in 2004; it and KBLA were among the network's first affiliates.

[2] The programming disappeared during the winter of 2006-07 because of the limited daytime hours, and the Air America affiliation was completely dropped in April 2007.

KCAA gained some notoriety when it began rebroadcasting recent episodes of the Imus program in the days immediately after it had been canceled by CBS Radio.

KCAA CEO Fred Lundgren considered bringing back Imus in a live time slot (03:00 to 06:00 on the West Coast), at the time held by Brother Stair) but found ABC's terms, which included rights fees, unacceptable, and refused to pick up the show again; Imus would air on KABC only until KCAA general manager Dennis Baxter inked a deal with ABC Radio/Citadel Broadcasting to bring Imus back to KCAA starting Thursday, September 1, 2008.

[6] As of 2017, KCAA only airs a small, delayed portion of the Imus program, one hour per day most weekdays.

Near the end of the movie while people are loading pods into trucks, soothing music from KCAA is played over loudspeakers at the site.