Teletrece is a Chilean news program on Canal 13 that, since 1970, has had the title of being the longest running news program in Chilean television, replacing TVN's 60 Minutos and subsequent programs TV Noticias, Noticias and 24 Horas. Teletrece born in March 1970, succeeding the news The Esso reporter and instantly Martini. Its consolidation as television news is produced during the government of Salvador Allende, time of great social upheaval and polarization in the country.1 Since its initial duration of 30 minutes each night, Teletrece begins to extend to reach during 1973, an hour and a half in length, with three daily editions of 30 minutes, one at 14:00, under the name of Teletarde, another to 19:00, Telenoche under the name and the last at 23:00, under the name Telecierre, plus 5 min capsules for several moments of scheduling, because of the large amount of information which were produced following above background. The audience leaned Teletrece at the expense of National News, National Television of Chile, Allende charged pro-trend, 2 and Nuevediario TeleU and the Channel, 6 and 9 of the Television Corporation of the University of Chile, which the last of these was taken by workers gobiernistas.3 In the mentioned period, gain notoriety as reporters who had the facts to the audience, journalists Julio Lopez Blanco and Claudio Sanchez.