On the Musicofireland channel on Youtube you can watch some preview video's of the second part of this documentary titled "Welcome To America", hosted by Moya Brennan. Not only the tv-ad but also clips of Sinead O'Connor, U2, Glen Hansard, Cranberries and Chieftains@The Corrs. More about the PBS broadcast soon.
Update: WLIW21 has planned the broadcast of the documentary for friday 09/17/2010 at 9:30pm and again on sunday 09/19/2010 at 12am. More later..