I happened upon this programme on BBCi about banjo playing in Ireland. It's in a mixture of Irish (with subtitles) and English. I'm not even learning Irish and I ended up watching some of it because of the music. Anyway I thought it would be interest to some on here, but bear in mind that BBCi don't keep episodes up for very long, it'll probably be gone in a few days.
Edit - just realised that BBCi may not be available outside the UK, but if you can't play it I guess you might have more luck with YouTube. the programme's called Ceird An Cheoil and apparently they've been having a series of Irish music related progs.