2001 | 18 Episodes

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

Season 2

2002 | 18 Episodes

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

Season 3

2003 | 16 Episodes

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

Season 4

2005 | 16 Episodes

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

Season 5

2006 | 17 Episodes

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

Season 6

2008 | 16 Episodes

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

Season 7

2009 | 14 Episodes

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

Season 8

2011 | 6 Episodes

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.