Where can I find a video recording of a broadway musical for free?

Question:

Where can I find a video recording of a broadway musical for free?

Especially, Brooklyn, Legaly Blonde, Spring Awakening, Spamelot, Avenue Q, and Mary Poppins.

Best Answer - Chosen by Asker: YouTube (I specifically remember there being Legally Blonde and Spring Awakening on YouTube!), Google Video, umm friends who have taped the show. There are some people online who sell bootlegs of shows (but after reading the other answers I feel kind of guilty supporting bootlegs). There are also a lot of people in Broadway internet communities who are willing to trade or share bootlegs of shows with you.