[4] Another version of the same story involved Carlos Morínigo Delgado, close aid of Stroessner[5] and founder of what would become SNT, receiving a visit from Prince Philip of the United Kingdom at Hotel Guarani, who asked the same question in March 1962.

Studies were being conducted abroad in Germany, France and Argentina from September 28, 1963,[7] with investigations and support from those countries coming to Paraguay.

[5] The first horoscope program was directed by a Paraguayan astrologer, who was removed after its first broadcast due to the difficulties the host had in speaking on camera.

He was replaced by Argentine coach Héctor Moyano, who said he had studied astrology in Buenos Aires and who worked under the name Karim Gestal.

TV Cerro Cora produced a five-minute newscast in its beginnings, where the presenters read news in front of the cameras, before adding Sucesos Paraguayos, by Prisciliano Sandoval, and Paraguay al día (produced by Telefilm, 1968-1982), a sort of televised newsreel, with Super 8 footage, concerning mainly official acts of the government.

[8] Prime time entertainment productions included The Jacinto Herrera Show which was presented by the titular actor who was having a career in Argentina; Jueves de Gala was hosted by Mercedes Jané and Mario Prono; and Buscando la letra with Carmen Maida and Rodolfo Schaerer Peralta, were some of the most popular programs.

Later, the main news program Hora 20 started, airing at 8pm, hosted by Héctor Velázquez and Susana Ibáñez Rojas.

In 1966, the first "live telenovela" was broadcast, which was actually a televised play: Una noche en familia, with Mario Prono, Mercedes and Stella Marys Jané and 12-year old Luis D'Oliveira.

Periodically during the dictatorship, SNT's facilities received visits from Alfredo Stroesser and his secretary Mario Abdo Benítez.

[8] With the end of the dictatorship in 1989, network founder Carlos Morínigo Delgado mortgaged his assets and lost control of the channel.

[11][12] Between 1998 and 1999, the former administrations, mostly politicians, left their control over the network, ultimately selling SNT to Mexican businessman Remigio Ángel González of the Albavisión conglomerate.

[18] On November 12, an agreement was signed between SNT, Paravisión, radio stations and ABC Diario to cover the internal elections of the Colorado Party on December 9.

[20] SNT has been transmitting in high definition (HD) since April 2017, in a process that started with an experimental service on cable with the CONMEBOL qualifiers, which was followed by the terrestrial launch on channel 20.1.

[21] SNT conducted its digital test broadcasts in April 2017, at a time where the network was starting plans to convert to HD.