 Univision's roots can be traced back to 1955, when Raúl Cortez started KCOR-TV, an independent station in San Antonio, Texas, which was the nation's first Spanish-only TV outlet.The station was not profitable during its early years, and in 1961, Cortez sold KCOR-TV – now known as KWEX-TV – to a group headed by Mexican entertainment mogul Emilio Azcárraga Vidaurreta, owner of Mexico-based Telesistema Mexicano (the forerunner of Televisa).Cortez's son-in-law Emilio Nicolás Sr., who helped produce variety programs for the station, held a 20% stake and remained as KWEX general manager for three decades.