Season guide
Who Do You Think You Are?: Season 1
10 episodes
Premiered Oct 12, 2004 Updated Jul 21, 2026
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Episodes
S1·E1
Bill Oddie
Oct 12, 2004 · 60 min
Bill Oddie is the first celebrity to undergo the family tree search, as he endeavours to find out more about his mother, who was institutionalised when he was a child.
S1·E4
Jeremy Clarkson
Nov 2, 2004 · 60 min
Jeremy is determined to find out if his mother was descended from the Kilner Jar people, and if they were, where all the money had gone.
S1·E5
Ian Hislop
Nov 9, 2004 · 60 min
Ian finds out more about the part his grandfathers played in the wars of the 20th Century.
S1·E6
Moira Stuart
Nov 16, 2004 · 60 min
Moira Stuart's family tree exploration takes from the Highlands of Scotland to the West Indies.
S1·E7
David Baddiel
Nov 23, 2004 · 60 min
David explores his Jewish roots and discovers some Orthodox Jewish relatives in London.