Re those having feed problems on mobiles - unfortunately I can only find this link for camera 4 (it's the only one working on bmx-tv.net) -
http://vaughnlive.tv/realitytv101
All I can suggest is to keep trying with VPNs to access all of the streams on the BBCAN website - it sucks but it's the only solution I can find
. TouchVPN seems to be working on my iPad but there are alternatives (which unfortunately might mean paying in some circumstances).