 In 1988, TK Communications changed the FM station's call sign to KZVE, becoming a Spanish-language adult contemporary station, known as "K-Suave" (K-Soft).KBUC (AM) became KXTN, airing a Tejano music format.In 1991, TK Communications decided to flip the formats on the two stations, given that 1310 had significantly higher ratings than the FM counterpart, with 1310 AM becoming Spanish AC, as KZVE, while 107.5 switched to Tejano.