In 1975, brothers Emilio Diez Barroso and Fernando Diez Barroso began working in the presidency offices of Televisa.
Televisa started to transmit several programs produced by the Universidad Nacional Autónoma de México in 1977.
This movement from media, enterprises and Mexicans is reflected in the buildings created with the money from this Marathon, named Centros de Rehabilitación Infantil (CRIT).
It is said that sponsors use it as a way to deduce taxes as the Teletón takes place at the end of the fiscal year and therefore allows companies to deduce their donations before declaring their incomes.
Over the next four years, both networks competed in content and image until they merged, taking on the name Televisa in 1973.
In the merger deal, the owners of Telesistema had 75 percent of the stocks, while the owners of Televisión Independiente had the rest, which were sold to Telesistema later because of financial problems.
In December 1997, Televisa joined with other Mexican media companies to create a marathon known as Teletón, whose mission is to provide knowledge about physical disabilities, giving a strong message about respect, equality and support to people in these conditions.
On the community of San Salvador Atenco was violently repressed by the Mexican police who used excessive force, and committed severe human rights violations.
This event was one of the most violent repressions in the nation’s history.
On March 3, 1983, Canal 8 was reformatted to become a cultural channel, offering informative programs, debates and cultural shows.
In 1985, a frequency swap moved the station from channel 8 to 9, and Televisa also decided to swap its callsign for that of XEQ-TV, which had been on channel 9 and broadcast from Altzomoni; the XHTM callsign was moved to that station, which was moved to channel 10.
The company has been led and owned by three generations of Azcárraga; each has marked an era for the company and, until October 2017, each had passed the ownership of the company to his son upon his death.