most stations played current music with only a few older songs mixed in. The only local competition in this format was KWOW (1600 AM), a mostly automated station in nearby Pomona. With the switch in format came a new moniker: "K-Earth", named after Earth Day which had debuted to much fanfare two years before. New matching call letters KRTH accompanied the change. The "K-Earth 101" jingle was also introduced at this time; it directly echoed the sound and notes of the jingle from KHJ, the station where many of these "gold" songs had originally been played. (KHJ was still on the air at this point, but was playing current top 40 songs.) In the late 1970s, under program director Bob Hamilton, KRTH added current hits to its oldies playlist—essentially an adult contemporary format. Though current music was played to varying degrees through the early 1980s, K-Earth's format remained focused on the past. In 1985, KRTH solidified its oldies format, adopting the motto "Classic Rock and Roll". K-Earth began promoting its "Good Time Oldies" image with frequent TV ads featuring Beach Boys music, classic cars, palm trees, and the ever-present K-Earth jingle. The songs featured were from 1955 to 1978, with the focus largely on the 1960s. Doo-wop, early rock, Motown, girl groups, Elvis Presley, and the Beatles were the mainstays of the station's music mix. Throughout the 1980s, K-Earth would feature huge weekend specialties, including #1 music over the Labor Day weekend. Every L.A. #1 song would be played in chronological order (utilizing the older KHJ Boss 30, KFWB Fab Forty, and other local charts) from 1955 through 1985. The weekend before would feature the "Runners Up of Classic Rock and Roll Weekend", consisting of #2 songs. The "Firecracker 300" was played over the Fourth of July weekend. Other specials included a Memorial Day weekend "A to Z", the "Super Sixties Weekend", and the "Souvenirs of the Seventies Weekend". In February 1986, KHJ adopted the KRTH call letters; this necessitated the FM station adjusting its call sign to KRTH-FM. In 1988, RKO General sold to Beasley Broadcasting due to the scandals involving KHJ-TV which forced the former company out of broadcasting. Oldies were a ratings success for KRTH-FM and similar stations across the United States and Canada. In March 1989, another Los Angeles FM oldies station emerged at 93.1 FM under the call sign KODJ, later , as a direct