Blood of the Irish is a two-part documentary miniseries broadcast on RTÉ One and presented by the professional gardener Diarmuid Gavin. It commenced airing on 5 January 2009 and completed broadcasting seven days later. In the documentary, Gavin sought 'the truth' about Irish genealogy. Genetic research into a selection of Irish DNA and its origins was undertaken for the programme at Trinity College, Dublin and EthnoAncestry. They revealed some previously unheard ideas. An attempt was also made to extract ancient DNA from some of the oldest human remains that have to date been located within the boundaries of Ireland.