Next Episode of Who Do You Think You Are? is
Series in which celebrities trace their ancestry, discovering secrets and surprises from their past.
Greg Davies's father made sure that his son was born on Welsh soil so that when Greg became a rugby international, he'd play for Wales.
Fortunately for comedy, Greg showed little talent for rugby; but he retains a sense of connection to his Welsh roots and, two years after his dad's death, wants to know more about them.
Greg gets more than he bargained for when he identifies a wayward great grandfather, but is rewarded when the trail leads further back to the deepest, Welsh-est roots that anyone could wish for.
Actor Warwick Davis owes his big break, aged 11, to his paternal grandmother Edith, who heard a radio ad advertising for short people to appear in Return Of The Jedi.
Warwick takes a non-judgemental approach as he researches the family line stretching back from Edith, finding humanity and humour in some uncomfortable stories.
On his maternal side, Warwick is equally open-minded when he finds out about his great, great, great grandfather: a postman who lived a double life.
Actor Sunetra Sarker sets out to explore the Bengali heritage she ignored when she was growing up in Liverpool.
Starting in Kolkata, Sunetra learns of her great grandfather's courageous activism in colonial Bengal - and of a family connection to Gandhi during the struggle for Indian independence.
Crossing into Bangladesh, Sunetra visits her great grandmother's ancestral home village and discovers the harrowing story of how her family was caught up Bangladesh's 1971 war for independence.
BBC News presenter Sophie Raworth investigates her father's side of the family, and discovers a tragic but inspiring tale of ancestors who risked everything to move to America in search of religious freedom.
Closer to home, she explores a family rumour that her great grandfather worked at Kew Gardens, and is astonished to uncover a horticultural heritage stretching back to the 1700s and pineapples.
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