Season 1 of Research Unit premiered on May 11, 2006.

Season 2 of Research Unit premiered on September 6, 2007.

Season 3 of Research Unit premiered on November 20, 2008.

Season 4 of Research Unit premiered on September 10, 2009.

Season 5 of Research Unit premiered on March 10, 2011.

Season 6 of Research Unit premiered on April 26, 2012.

Season 7 of Research Unit premiered on February 28, 2013.

Season 8 of Research Unit premiered on February 27, 2014.

Season 9 of Research Unit premiered on February 5, 2015.

Season 10 of Research Unit premiered on January 28, 2016.

Season 11 of Research Unit premiered on January 5, 2017.

Season 12 of Research Unit premiered on March 1, 2018.

Season 13 of Research Unit premiered on March 7, 2019.

Season 14 of Research Unit premiered on March 28, 2020.

Season 15 of Research Unit premiered on April 16, 2022.

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