Hi Calico,
I run an office in Dublin that's based around the media and am in charge of hiring people for the office. While the office dress code is v casual, I would expect anyone coming for an interview to wear a suit and tie. May sound funny / like a double standard, but it shows you made the effort and are treating the interview seriously.
I know you had decided to wear a suit in any event, but thought you might like to know that you've made the right decision.
Best of luck with the interview.
Streamer