Season 1 of Who Do You Think You Are? premiered on March 24, 2009.
Season 2 of Who Do You Think You Are? premiered on November 23, 2009.
Season 3 of Who Do You Think You Are? premiered on November 9, 2010.
Season 4 of Who Do You Think You Are? premiered on September 6, 2011.
Season 5 of Who Do You Think You Are? premiered on August 27, 2012.
Season 6 of Who Do You Think You Are? premiered on September 23, 2013.
Season 7 of Who Do You Think You Are? premiered on August 25, 2014.
Season 8 of Who Do You Think You Are? premiered on August 24, 2015.
Season 9 of Who Do You Think You Are? premiered on August 29, 2016.
Season 10 of Who Do You Think You Are? premiered on September 1, 2021.
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