Sistema Brasileiro de Televisão, Brazilian Television System) is a Brazilian television network. It first aired in 1981, and its headquarters are based in Osasco at the CDT Anhanguera complex.HistoryBefore SBTRede Tupi, channel 4 in São Paulo, began operations in 1950. In 1962 (when he began his first TV program), Silvio Santos produced his own programs on Tupi, TV Paulista and on Rede Globo beginning in 1965. Soon enough, he started plans to have his own television channel. His production company, Estudios Silvio Santos Cinema e Televisao, was successful on Tupi, Globo and (since 1972) on Rede Record (where he then owned half of the company's stock).In 1976, with help from humourist and friend Manoel de Nóbrega (who had a show on Rede Globo and was part of Bau de Felicidade), Santos obtained a license for his own station: Rio de Janeiro's channel 11, known as "TV Studios" or "TVS". Soon after its launch, its flagship program (Programa Silvio Santos on Sundays) plus the late night Silvio Santos Diferente on weekdays began to be broadcast (Santos left Globo the same year). Other programs soon began, as the network gained support from city residents who sought an alternative to Globo, Tupi, Bandeirantes and TV Rio (the city's network, related to TV Record along with TVS). The new channel debuted on May 14, 1976, with a logo of a gold circle with the number 11 slanted in gold. While during its early years the network studios were based in Rio, all program production for TVS transferred to São Paulo in 1978-79.