The first attempts to create television were made by Mexican inventor Rubén González on his own initiative on 7 September 1956, in black and white broadcast.

In that same month Boris Eserski, Guillermo Pinto and Tono Alfaro, former owners of the radio station YSEB, collaborated in this creation.

Days later, two other programs that Channel 6 had were included, one was a project of the Salvadoran writer Eugenio Martínez Orantes, who recited his poems live while a classical dance group interpreted them musically.

A month later, Channel 6 implemented some new programming with Saturday Concerts, hosted by musician Nicolás Arene and Televariedades Pilsener.

On 6 April 1973, Canal Seis SA relaunched the company through YSLA-TV, which was the first to introduce color television.