Check out these clips on youtube. Someone has done a little editing I see.

Mary Harrasses Anna
http://www.youtube.com/watch?v=d72yAppbbyo&feature=related

Nellie totures Ms. Peel
http://www.youtube.com/watch?v=Ypy9ErCyHV4&feature=player_embedded

Hester-Sue brings some vocal soul to Church
http://www.youtube.com/watch?v=p1piBem7yzY&feature=related