Visions TV in Canada is carrying "Mummers and Masks", a documentary about the mummering tradition in Newfoundland as well as Ireland and the U.S., on Boxing Day, 6:00 and 9:00 Mountain Time. More info at http://www.visiontv.ca/Programs/Programs_Specials_v3.html
and http://www.newfoundland-labrador.com/archives/events/mummerstv.asp .

I had an advance look at the documentary when I was in Newfoundland
in November. Anita Best, one of the organizers of the conference I was at, and a highly respected traditional singer, is the narrator of the program. It was very interesting, and I recommend it highly. I'll be setting my VCR for sure.