On July 4 , 1976 , Univision started distributing its national feed via satellite .
On July 4 , 1976 , the network began distributing its national feed via satellite , which originally was delivered as a superstation-type feed of San Antonio 's KWEX-TV , before eventually switching to a direct programming feed of SIN , allowing cable television providers to carry the network on their systems at little cost .
Univision