Season 1 of Operación triunfo premiered on October 22, 2001.

Season 2 of Operación triunfo premiered on October 7, 2002.

Season 3 of Operación triunfo premiered on September 29, 2003.

Season 4 of Operación triunfo premiered on June 30, 2005.

Season 5 of Operación triunfo premiered on October 8, 2006.

Season 6 of Operación triunfo premiered on April 8, 2008.

Season 7 of Operación triunfo premiered on April 29, 2009.

Season 8 of Operación triunfo premiered on January 16, 2011.

This is the eighth series of Spanish reality TV show Operación Triunfo. It was presented by Pilar Rubio

The first program was broadcast on 16 January 2011 with the final on 20 February 2011, thus a considerably shorter run than the earlier series. the series was won by Nahuel Sachak.

Season 9 of Operación triunfo premiered on October 23, 2017.

Season 10 of Operación triunfo premiered on September 19, 2018.

Season 11 of Operación triunfo premiered on January 12, 2020.

Season 12 of Operación triunfo premiered on November 16, 2023.