Sistema Délnicana de Televisão

Sistema Délnicana de Televisão, commonly known by its acronym SDT, is a Delnican commercial television network, being launched on August 19th, 1981 by businessman and television presenter Shimon Abarbanel, better known by his stage name Silvio Campos, after acquiring part of the concessions formerly held by Rede Guarani (making it de facto one of its legal successors) and integrating them with then-independent Rio de Centeiro station STV, which he first signed on in 1976.

It is headquartered in São Antônio, with additional operations being held in Rio de Cebreiro, aside from additional owned-and-operated stations in Avéncia (Distrito Federal), Gisném (Lará), Porto Répido (Rio Geraisa do Sul) and Clevás (Forte Paulo), being owned by Grupo Silvio Campos.

It is the country's third largest and most watched television network, although it has also been criticized for its populist approach, its quality decline over the years, its inconsistent schedule changes, its bias towards the various Governments that were in function and, more recently, the dubious quality of its sports broadcasts.

Its primary competitors are Rede George, Rede Unicord, Rede Roseirantes, Redetele! and TV Pública.