competitor to KRTH-FM. KODJ/KCBS-FM played oldies from 1955 to 1972 with a heavy focus on pre-1964 oldies. , which reverted to the KRTH call sign in May 1990, continued acknowledging the mid- and late 1970s and continued playing moderate amounts of pre-1964 material until 1991, when management eliminated the 1980s music and most post-1972 songs. The two stations went head-to-head for a few years, with K-Earth consistently getting higher ratings and emerging as the winner. In an attempt to distinguish itself from K-Earth and regain the oldies audience, KODJ changed its call letters to and, in early 1993, began playing mostly pre-1965 oldies. KCBS-FM successfully switched to a classic rock format in late 1993 called "Arrow 93", but later flipped to adult hits as "Jack FM". KRTH, by then, focused on the 1964–1969 period with moderate amounts of pre-1964 and 1970s songs each hour. The station remained a competitor with Pasadena's AM oldies station KRLA until 1998, when that station switched formats. KRTH was sold to Infinity Radio in 1994. From 1992 to 1997, K-Earth was the home of The Real Don Steele and Robert W. Morgan, who were co-workers at KHJ during the 1960s Boss Radio era. In April 1997, Steele announced in a very emotional on-air statement that he had lung cancer, which subsequently led to both his retirement as well as his death by the summer of 1997. Six weeks later, in May 1997, Morgan would grip audiences with his own heartfelt announcement that he had the same disease. His death several months later severed KRTH's last link to Boss Radio. "Shotgun" Tom Kelly succeeded Don Steele in afternoon drive that September. KRTH changed hands in 1996 when Infinity was purchased by Westinghouse Broadcasting, which at the time owned CBS, making KRTH and KCBS-FM sister stations. K-Earth continued with its oldies format, adjusting it toward the end of the decade. Older songs from before the British Invasion of 1964 were increasingly dropped from the playlist, and the station began to emphasize music of the late 1960s, especially that of Motown. The playlist itself began to shrink, with only the biggest, most-requested hits from this period played in heavy repetition. In 2002, the station would be reunited under common ownership with the former KHJ-TV when CBS bought KCAL-TV; KRTH wound up moving into KCAL's old facility at 5515 Melrose Avenue in Hollywood (on the Paramount Pictures studio lot)