Hey there,
Recently I've found out that if you try to view a stream via the list on this webpage:
http://teamfortress.tv/streams
The person's stream you choose only works properly if their name on the stream list matches their twitch name, however if you try to visit their stream via the links section in the upper right of the website, it works fine.
For instance, clicking on "Melon" on the stream list takes me to http://teamfortress.tv/stream/melon, which then tries to load the video from the twitch account of "Melon" on Twitch, whereas clicking on the same stream on the sidebar takes me to http://teamfortress.tv/stream/melonhl, which is what her name actually is on twitch, which works fine.
It's not too big of a deal but I figured I should at least mention it to you. I'd assume it's a pretty easy fix.
Thanks. :>