Czech Television ( ; abbreviation: ČT) is a public television broadcaster in the Czech Republic, broadcasting seven channels. Established after the Velvet Revolution in 1992, it is the successor to Czechoslovak Television founded in 1953. History 1953–1992: Czechoslovak Television Founded on 1 May 1953, Czechoslovak Television (ČST) was the state television broadcaster of Czechoslovakia used as a state propaganda medium of the then socialist state. It was known by three names over its lifetime: , (until 1990) and (from 1990 until 1992). ČST originally consisted of a single channel and limited experimental broadcasting in 1953. Regular broadcasts began on 25 February 1954 and on 10 May 1970, a second channel was launched. The broadcast language of ČST was predominantly Czech in the first channel, Slovak for selected programming, and both for news. The second channel was split into two, broadcasting various "national" language programming in the two parts of the country. The main headquarters of ČST was located in Prague, but it also had main studios in Bratislava, Košice, Ostrava and Brno. The first public broadcasting was a short performance by František Filipovský (1907–1993) on 1 May 1953. On 11 February 1955, the first live broadcast was made, an ice hockey match from Prague. Like all other media in communist Czechoslovakia, the station was subject to heavy censorship. However, as part of the process of social liberation in 1968, ČST aired broadcasts about the Prague Spring for a few days. However, in 1969, it became part of the normalisation efforts of the national media. On 10 May 1970, Czechoslovak Television began broadcasting a second channel, ČST TV2. Further technical improvements were made on 9 May 1973, when the first regular broadcasts in colour started on TV2, followed two years later by colour transmission on the first channel as well. At the end of the decade, in 1979, a building and a studio based in Prague's Kavčí hory was opened, which became the home of ČST's news department. After November 1989, lineup changes were made, with the first channel being renamed F1 for the federal district, and the second channel being split into the Czech ČTV and the Slovak S1, the first such division of channels by ČST. A third channel for Czech audiences, previously used by Soviet broadcasting, was launched on 14 May 1990, called OK3 (, ). A replacement channel for Slovak audiences called TA3 was created on 6