Dougal mentions Lucky Charms, which are not popular in the UK or Ireland. Writer Graham Linehan admits that was his own mistake, due to his obsession with American movies.
Mrs Doyle mentions that she's off to "St Patricks Hill" for a Lenten pilgrimage. This is a parody of Croagh Patrick in County Mayo in the west of Ireland. On the last Sunday of July every year, people climb the mountain, sometimes following the tradition of climbing it barefoot!