<P> In early 2009, it was announced that NBC had ordered an American adaptation of the British series Who Do You Think You Are? . It was reported that Lisa Kudrow was set to executive produce the series as well as participate in one of the first - season episodes . The show premiered on NBC on March 5, 2010, as one of the replacement shows of The Jay Leno Show at the ten o'clock hour . </P> <P> NBC renewed the series for two subsequent seasons before cancelling it in 2012 . After the cancellation the series was then picked up by TLC, where it has aired for six additional seasons . On August 25, 2017, TLC renewed the series for a tenth season . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Network </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 7 </Td> <Td_colspan="1"> March 5, 2010 (2010 - 03 - 05) </Td> <Td> April 30, 2010 (2010 - 04 - 30) </Td> <Td> NBC </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> February 4, 2011 (2011 - 02 - 04) </Td> <Td> April 8, 2011 (2011 - 04 - 08) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 12 </Td> <Td_colspan="1"> February 3, 2012 (2012 - 02 - 03) </Td> <Td> May 18, 2012 (2012 - 05 - 18) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> July 23, 2013 (2013 - 07 - 23) </Td> <Td> September 10, 2013 (2013 - 09 - 10) </Td> <Td> TLC </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> July 23, 2014 (2014 - 07 - 23) </Td> <Td> August 27, 2014 (2014 - 08 - 27) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> March 8, 2015 (2015 - 03 - 08) </Td> <Td> April 26, 2015 (2015 - 04 - 26) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 7 </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> July 26, 2015 (2015 - 07 - 26) </Td> <Td> August 30, 2015 (2015 - 08 - 30) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 8 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> April 3, 2016 (2016 - 04 - 03) </Td> <Td> May 1, 2016 (2016 - 05 - 01) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 9 </Td> <Td_colspan="2"> 8 </Td> <Td_colspan="1"> March 5, 2017 (2017 - 03 - 05) </Td> <Td> April 24, 2017 (2017 - 04 - 24) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 10 </Td> <Td_colspan="2"> 6 </Td> <Td_colspan="1"> May 21, 2018 (2018 - 05 - 21) </Td> <Td> June 18, 2018 (2018 - 06 - 18) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> Specials </Td> <Td_colspan="2"> </Td> <Td_colspan="2"> August 16, 2015 (2015 - 08 - 16) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="3"> Originally aired </Th> </Tr>

When does who do you think you are come on tv