The story en español from
Univision News. My quick translation of the first couple paragraphs below.
After 53 years on the air and almost 30 of them produced and broadcast in the United States, the popular program Sábado Gigante, hosted by Don Francisco, ends its successful run in September of this year. The entertainment division of Univision, the network which has presented the show since 1986 and which has brought it to more than 40 countries, announced that the final program of its run will be broadcast on the 19th of September, at the end of the 2014-2015 television season.
Sábado Gigante is the longest-running entertainment program in the history of global television. Since 2001, when the show had completed 40 seasons, the show has been in the Guinness Book of World Records. Curiously, the origin of the show was a Sunday show, broadcast in August 1962.