Canadian comedian Katherine Ryan's investigation of her family history leads her to a Methodist minister and his family in colonial Nova Scotia, cod traders in Newfoundland, and…

Robert 'Judge' Rinder investigates his grandfather, a Holocaust survivor, and the dark mystery surrounding his great-grandfather.

Paralympian Jonnie Peacock looks back through the generations and ends up captivated by his four-times-great-grandmother.

Una Stubbs never met her paternal grandparents even though they didn't die until she was in her 20s. In her quest to find out more, Una uncovers a story of illegitimacy and poverty…

Actor Nigel Havers is usually cast in upper class roles, but his roots turn out to be very different.

Paul Merton traces the life of his maternal grandfather and discovers that he was involved in some of the key events that led to Irish independence in the 1920s.

Actress Lesley Sharp was adopted when she was five weeks old. She traced her birth mother over twenty years ago and found she was the result of her mother's affair.

Paul Merton traces the life of his maternal grandfather and discovers that he was involved in some of the key events that led to Irish independence in the 1920s.

Sports presenter and former footballer Gary Lineker follows the trail of his great, great, great grandfather James Pratt, and discovers that James was a poacher in Victorian England…

Comedian Sarah Millican is astonished to discover that her three times great grandfather was one of the first ever divers in the world.

Singer Marianne Faithfull investigates her mother's life and whether there is any truth in the rumour that the family was involved with the Austrian Resistance.

Actress and national treasure Julie Walters follows her roots back to rural Ireland.

Sharon Osbourne uncovers the difficult circumstances of her mother's and grandmother's lives, and is stunned to learn that her great-grandmother was born in the US.

Brian Blessed has always loved his name - but has no idea where his ancestors came from.

New Tricks star Tamzin Outhwaite investigates her Italian ancestry.

Brendan O' Carroll attempts to track down the men who murdered his grandfather.

Former TOWIE star Mark Wright discovers that his ancestors included an Andalucian master swordsman and a Spaniard who was burned at the stake during the Inquisition.

Actress Sheridan Smith is keen to know where her musical talent comes from.

Former TOWIE star Mark Wright discovers that his ancestors included an Andalucian master swordsman and a Spaniard who was burned at the stake during the Inquisition.

Bake Off star Mary Berry sets off on a journey to find out more about her father's family.

Actor Martin Shaw investigates the story of his grandfather, who walked out on his family.

Presenter and DJ Reggie Yates sets out on the trail of his grandfather.

Billy Connolly travels to India in the footsteps of his army ancestors.