<Tr> <Th> </Th> <Td> Julian Clary </Td> <Td> 1 February 2006 (2006 - 02 - 01) </Td> <Td> 5.94 </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Jane Horrocks </Td> <Td> 8 February 2006 (2006 - 02 - 08) </Td> <Td> 5.64 </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Gurinder Chadha </Td> <Td> 15 February 2006 (2006 - 02 - 15) </Td> <Td> 3.96 </Td> </Tr> <Table> <Tr> <Th> #</Th> <Th> Celebrity </Th> <Th> Original air date </Th> <Th> Viewers (millions) </Th> </Tr> <Tr> <Th> </Th> <Td> Barbara Windsor </Td> <Td> 6 September 2006 (2006 - 09 - 06) </Td> <Td> 6.40 </Td> </Tr> <Tr> <Th> </Th> <Td> Robert Lindsay </Td> <Td> 13 September 2006 (2006 - 09 - 13) </Td> <Td> 5.95 </Td> </Tr> <Tr> <Th> </Th> <Td> Colin Jackson </Td> <Td> 20 September 2006 (2006 - 09 - 20) </Td> <Td> 5.19 </Td> </Tr> <Tr> <Th> </Th> <Td> David Tennant </Td> <Td> 27 September 2006 (2006 - 09 - 27) </Td> <Td> 5.75 </Td> </Tr> <Tr> <Td_colspan="4"> Tennant traces his paternal roots to the Isle of Mull, and is surprised to find his family came not from the lowlands but the Scottish Highlands . He discovers his maternal grandfather was a star player for Derry City F.C. in the 1930s, and expresses concern when he finds that other relatives were members of the Orange Order . He is disturbed to learn that his great - grandfather played a key role in suppressing Catholics in Derry, Northern Ireland, and that Catholic cousins came under fire on Bloody Sunday . </Td> </Tr> <Tr> <Th> 5 </Th> <Td> David Dickinson </Td> <Td> 4 October 2006 (2006 - 10 - 04) </Td> <Td> 5.80 </Td> </Tr> <Tr> <Th> 6 </Th> <Td> Nigella Lawson </Td> <Td> 11 October 2006 (2006 - 10 - 11) </Td> <Td> 6.15 </Td> </Tr> <Tr> <Td_colspan="4"> She traced her ancestors to Ashkenazi Jews who originate from eastern Europe and Germany, leaving Lawson surprised not to have Iberian - Sephardi ancestry in the family as she had believed . She also uncovered that her maternal great - great - great grandfather, Coenraad Sammes (later Coleman Joseph), had fled to England from Amsterdam in 1830 to escape a prison sentence following a conviction for theft . </Td> </Tr> <Tr> <Th> 7 </Th> <Td> Jeremy Irons </Td> <Td> 18 October 2006 (2006 - 10 - 18) </Td> <Td> 5.82 </Td> </Tr> <Tr> <Th> 8 </Th> <Td> Julia Sawalha </Td> <Td> 25 October 2006 (2006 - 10 - 25) </Td> <Td> 5.54 </Td> </Tr> </Table>

Who do you think you are 2017 episodes