XHST-TDT, known as Trecevisión, is a television station on channel 13 in Mérida. Owned by Sistema Tele Yucatán, S.A. de C.V., and operated by the government of the State of Yucatán, Trecevisión is an educational and public television station. It transmits diverse programming, from cultural, artistic and variety shows, besides the events activities of the Government of Yucatán.
XHST is one of six state-owned television stations that are commercial concessions.
While channel 13 had periodically broadcast the Olympics in 1968, XHST-TV formally signed on February 27, 1970, transmitting a black-and-white signal.Luis Echeverría, who at the time was the PRI candidate for the presidency, was touring the state of Yucatán at the time and was invited to the new station's ribbon cutting ceremony. The station was owned by Telecadena Mexicana, a business venture of Manuel Barbachano Ponce, and was its 13th station. However, the station's ambitious plans were crippled in 1974, when the federal government, acting on behalf of state financier SOMEX, seized its assets; in 1975, most other Telecadena Mexicana stations were expropriated and added to the state-owned Canal 13 network from Mexico City. For the next seven years, SOMEX managed channel 13. The station broadcast five hours a day, six days a week, with little non-local programming. What local programs were produced were on a tight budget.