 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.Between the mid-1970s and late-1980s, SIN began affiliating with startup Spanish-language stations in markets such as Dallas–Fort Worth (KUVN) and Houston (KXLN), as well as with independent stations that previously broadcast in English.In Chicago, SIN moved its programming from WCIU-TV to new full-time affiliate WSNS-TV in July 1985.