It's not streaming... 99% of the things you watch online are in fact just downloads that start playing before they are finished downloading completely.
If you ever see a progress bar that fills up to the end, you know it's a download, not a stream.
If you get the "Unplug" addon for Firefox (
https://addons.mozilla.org/en-US/firefox/addon/2254) you can scan any page for downloadable media. It works like a charm for the stuff you see on uwlive, except for the Croc videos, which may in fact be actual streams. (Not sure - i'm not 100% knowledgable about this stuff, but i can make my way around.....)