on Radio Madrid, marking the debut of the chart list, with Monday Monday by The Mamas & the Papas as the first N°1. Soon, the show would be broadcast on ten Cadena SER radio stations. At first it was a daily show, revealing candidates during the week, and the new list each Saturday. The viewers would phone each station to vote for their favorite songs. The show was recorded in Madrid, then the tape was sent to all of the affiliate stations throughout Spain and broadcast simultaneously. The duration of the show was increased during the 70s from the original 1 hour to 2, 4 and finally 8 hours by the end of the 1970s. In 1979, Cadena SER decided to make 40 Principales a standalone radio network, which would be dedicated to the chart and its candidates 24 hours a day (what is later known, in Spanish, as radiofórmula). At first, the 40 Principales stations were still part of Cadena SER, becoming an independent network in 1987, though still owned by Grupo PRISA alongside Cadena SER. In 1985, the 40 Principales main station began broadcasting live by satellite throughout Spain. In 1990, the chart show started being broadcast also on TV through Canal+, and in 1998 also on the newly created 40 Principales TV satellite channel. The chart show got its present name, Del 40 al 1 (From 40 to 1), in 1995. During the 2000s, 40 Principales was expanded through Latin American opening some 400 stations in Spanish-speaking countries with either local media companies operating stations within a country or listening area or PRISA operating a company within a country. In May 2016, Los 40 Principales re-branded as simply LOS40. The main reason was that the station "is so much more than a top 40 list". In September 2017, the LOS40 TV channel was shut down after almost two decades of broadcasting. Game 40 Los 40 ran a program in Spain dedicated to video games, under the name Game 40, from 1992 to 1998. It aired in the evening each Sunday. The show was first hosted by Juan Luis Ferrer, but he was eventually replaced by Guillem Caballé; a writer for La Razón later said that Caballé transitioned the program into "a very dynamic and fun style." During Caballé's tenure, the program aired reviews, news and comedy segments interpersed with music from anime and video game soundtracks. Caballé