Wikipedia
KYST
KYST, branded as "La Nueve Veinte", is a Houston, Texas, area AM radio station that broadcasts news, information, and sports in Spanish. The station broadcasts on AM frequency 920 kHz and is under ownership of Hispanic Broadcasting, Inc..
The station went on the air in November 1948 as 92 KTLW. In the 1960s and 1970s, it aired a Top 40 format. In 1980, the call letters were changed to KYST. In 1982, while officially known as KYST, it billed itself as "Beatle Radio Number 9 KBTL" and had a format of all Beatles music. From the mid-1980s into the early 1990s it ran a Tejano format, as AM 920 KYST. It currently airs a Spanish Full Service format and is the longest continuously owned and operated radio station in the market.