Just noticed that pressing Pause on the live player doesn't stop the stream.
Can you adjust the little light bulb button so that it's more prominent when you're trying to 'turn the lights' back on? It gets covered by the black overlay and becomes a bit difficult to see when trying to return back to the original view.
Also, the window for the live chat box is a bit too small and doesn't show all of the Twitch.tv chat box. There are scroll bars, but it looks clunky the way it's set up right now.
Perhaps a separate page for comments and suggestions? I don't know where to put 'em besides in the comments section of this video.