Info from Na Píobairí Uilleann:

"All the lectures in our Notes & Narratives series are recorded and edited to be made available to subscribers and members on our website.

"Go to 'Source' - 'Video' - 'Lectures' "

There are several levels of subscription, starting with a basic level that is free, but you need at least the 20 euro per year level to view the videos of lectures.