TG4 is part of Irish public service TV, with particular responsibility for the Irish language. Its online archive section contains material which may be of interest to 'catters.
Click here to get the service.
Look out for the word "ceol" (music) and "cartlann" (archive) and click on the link. Some recent series worth checking out are:

Ceol ón gCroí
Siar an bóthar

While titles and much of the programmes themselves are in Irish, there are English subtitles - and some English speech and singing, in many of them.

Enjoy.