Where was Martin and Roman's Irish Road Trip filmed? ‌Premiering tonight, Monday, August 10, at 8pm, three-part special Martin and Roman’s Irish Road Trip sees the pair leaving their everyday lives behind to find out more about the people and culture of Ireland. Martin and Roman's Irish Road Trip filming locationsView 4 Images Martin and Roman Kemp visit Slane Castle, County Meath, Ireland. (Image: GETTY)‌In the first episode alone of their Irish Road Trip, Martin and Roman visit a plethora of memorable places. Martin and Roman’s Irish Road Trip airs tonight, Monday, August 10, at 8pm, on Channel 4.