I found these clips on youtube of the PBS A Christmas Celebration Extras! I'm not sure if they are posted anywhere else.
http://www.youtube.com/watch?v=9jjA1HHeifw&feature=related LOVE this clip! It's right after the concert and, as Méav has said in an interview "after a performance I am usually still on a high...you feel like a party!," and I think we see a
bit 
of that excitement here! You can feel the exhilaration radiating from all of them! I also love how Lisa makes her backstage entrance, with her arms in a victory pose, LOL!
Meav with Orla in a short clip thanking PBS
http://www.youtube.com/watch?v=41FoRadw6uY&feature=related All the Ladies
http://www.youtube.com/watch?v=X2Az9tQ08Zk&feature=related (You can click on some of the "related videos" to see a few more short extra clips)
Enjoy! (who wouldn't?)
