Who Do You Think You Are? - Season 4 (2007)

Griff's mother Gwyneth learned that her mother had been adopted following the death of Gwyneth's real grandparents in a train crash. Griff wonders why the the tragedy should have been kept secret for so many years.

Although there comes a point in her investigations when Carol Vorderman's eyes fill with tears she manages for the most part to keep a lid on things in tonight's edition of the reality/ genealogy series. Initially, that's because her mother's side of the family seem a jolly lot with a great-grandfather who was an astute businessman and owned the first butcher's shop in Prestatyn. It's not until Vorderman starts poking around in her Dutch father's family that things get a bit more emotional. Tony Vorderman and his wife split up three weeks after her birth and Carol ...

Alistair McGowan has always assumed his family has strong Scottish roots, but he often wondered where he gets his dark eyes and skin tone from.

As a Protestant growing up in Catholic Ireland, Graham Norton sometimes felt that he and his family were made to feel like foreigners in their own country.

Olympic rowing champion Matthew Pinsent knows that his parents' families were greatly affected by WWI; two of his grandfather's brothers were killed, as well as his grandmother's only brother.