I know I'll probably get downmodded for this as it's a bit tangential but I'm of the view Justin.tv should rename and rebrand itself. It sounds like someone's homepage and it's origins are based around the founder's personal video channel. It just doesn't sound like a site where people can share video themselves and doesn't reflect what it has really become. Just my 2 cents anyway.
I can see where you're coming from, but we've built up a lot of brand equity in the Justin.tv name now, with tons of people coming to the site, links, etc. For more and more people, it's just a name, like "Fox" or "Warner Brothers". Most people don't even know about the original Justin.tv show, or who Justin is.
Yeah I understand that but from a complete layman's perspective I still thought you might get a different category of person visiting (rather than those with an interest in tech). I thought you might need to rebrand to cross the chasm so to speak. I was concerned the name sounds a bit too gimmicky? I guess. But I wouldn't pretend to know more about your company than you though so if it's working out and you can build the brand name go for it!