Episode 6 in series 16 of the BBC's Who Do You Think You Are? is about Paul Merton tracing his roots. His Irish grandfather was from Waterford in Munster, died in the Glamorganshire canal and is buried in Cathays in Cardiff.
Very much the same stock as us. You can see the programme on https://www.bbc.co.uk/iplayer/episode/m0007zwd/ad/who-do-you-think-you-are-series-16-6-paul-merton for another 27 days.