In his youth, he was a member of the rock band Micky and The Tonys, which he left in 1965 to fulfill the military service.
In 1976, Argenta began working at Radio Nacional de España (RNE), the station that ran the program Popular Classics.
In 2003, 2004 and 2006, he was the commentator of RTVE in the Junior Eurovision Song Contest held in Copenhagen (Denmark), Lillehammer (Norway) and Bucharest (Romania), respectively.
Fernando Argenta died of pancreatic cancer on 3 December 2013, aged 68, in Boadilla del Monte, Community of Madrid.