Season 1 of History Detectives premiered on July 14, 2003.

Season 2 of History Detectives premiered on June 21, 2004.

Season 3 of History Detectives premiered on June 27, 2005.

Season 4 of History Detectives premiered on June 19, 2006.

Season 5 of History Detectives premiered on June 25, 2007.

Season 6 of History Detectives premiered on June 30, 2008.

Season 7 of History Detectives premiered on June 22, 2009.

Season 8 of History Detectives premiered on June 21, 2010.

Season 9 of History Detectives premiered on June 21, 2011.

Season 10 of History Detectives premiered on July 17, 2012.

Season 11 of History Detectives premiered on July 1, 2014.

The 11th season of "History Detectives" premiered on July 1st, 2014. In past seasons, several mysteries were explored in each episode. This season however, "History Detectives" has been reformatted to focus on one iconic mystery per episode and the show is now called "History Detectives Special Investigations".