I got rtmpdumphelper, it detects the stream but closes it
http://www.tntgo.tv/video/senorita-polvora-s01-e02
I see you downloaded using rtmpdump, but in my case it's piping it to rtmpsuck. And yours also has "-C O:1 -C O:0" parameter which rtmpsuck does not.
Could that be the problem? How can I copy the stream details from rtmpsuck window manually into rtmpdump?