I missed quite a bit of last evening's first episode of Ancestors (in the Attic) on History Television, but tuned in for the final item about finding a woman's aboriginal ancestor, wife of the War of 1812 British officer.
After trying various paper records the panel resorted to the International Genealogical Index (IGI) and found a name. The source was stated to be oral history.
The IGI is blessed with creativity and good intention which may not necessarily align with the truth. The panelists would surely not fall for accepting such flimsy evidence without other justification. Unfortunately the way the item was edited did give that impression.