International singer Olivia Newton John makes an emotional journey to Wales to discover the extraordinary story of her Welsh ancestry, beginning in her father's home town of Cardiff.
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See all broadcasts of Olivia Newton John (2)
Producer and Director Geoff Evans on the highlights from a decade of the series.
Genealogist Mike Churchill-Jones on where to start when researching your own family tree
Baroness Tanni Grey-Thompson talks about her family history journey.
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