streamers,
Did you reload /etc/pf.conf or reboot the OS? Do you see the rules in the output of pfctl if you do "sudo pfctl -s nat", "sudo pfctl -s rules", or just "sudo pfctl -s all"?
Please try with the first stream "LIVE STREAMING – SIMULATED LIVE BROADCAST" on this page:
http://www.netromedia.com/video/vide...ming-examples/
This should be easy.