2010 | 7 Episodes

Season 1 of Who Do You Think You Are? premiered on March 5, 2010.

2011 | 8 Episodes

Season 2 of Who Do You Think You Are? premiered on February 4, 2011.

2012 | 12 Episodes

Season 3 of Who Do You Think You Are? premiered on February 3, 2012.

2013 | 8 Episodes

Season 4 of Who Do You Think You Are? premiered on July 23, 2013.

2014 | 6 Episodes

Season 5 of Who Do You Think You Are? premiered on July 23, 2014.

2015 | 8 Episodes

Season 6 of Who Do You Think You Are? premiered on March 8, 2015.

2015 | 6 Episodes

Season 7 of Who Do You Think You Are? premiered on July 26, 2015.

2016 | 6 Episodes

Season 8 of Who Do You Think You Are? premiered on April 3, 2016.

2017 | 8 Episodes

Season 9 of Who Do You Think You Are? premiered on March 5, 2017.

2018 | 6 Episodes

Season 10 of Who Do You Think You Are? premiered on May 21, 2018.

2018 | 4 Episodes

Season 11 of Who Do You Think You Are? premiered on December 3, 2018.

2022 | 6 Episodes

Season 12 of Who Do You Think You Are? premiered on July 10, 2022.