Check out this link to this great NYC Jazz club..I live about 1 hr from the place and have been there a lot but this is a constant live video feed.....
http://www.smallsjazzclub.com/index.cfm?itemCategory=32338&siteid=272&priorId=0&banner=a
http://www.smallsjazzclub.com/index.cfm?itemCategory=32338&siteid=272&priorId=0&banner=a