Season 1 of Enigma premiered on June 12, 2001.

Season 2 of Enigma premiered on September 24, 2002.

Season 3 of Enigma premiered on July 23, 2003.

Season 4 of Enigma premiered on July 28, 2004.

Season 5 of Enigma premiered on July 11, 2005.

Season 6 of Enigma premiered on July 17, 2006.

Season 7 of Enigma premiered on June 10, 2007.

Season 8 of Enigma premiered on March 12, 2008.

Season 9 of Enigma premiered on July 29, 2010.

Season 10 of Enigma premiered on June 1, 2023.