TG4 has put up a few vids on the trade of instrument making.
This search will give you them.
http://video.google.co.uk/videosearch?q=Ceird+an+Cheoil&so=1&sitesearch=
There are some on accents of music / regional styles.
This search will give you them.
http://video.google.co.uk/videosearch?q=Canuinti+Ceoil&so=1&sitesearch=
This search gives you 3 of the Highland Sessions episodes.
http://video.google.co.uk/videosearch?q=The+Highland+Sessions+-+Episode&so=1&sitesearch=
David