NBC Universal has quietly pulled the official channel on YouTube the two companies established last June. Of course, that was a long time ago, in Internet years, and the relationship had run its course. NBC got buzz for a revived Saturday Night Live and The Office, and YouTube, through the sheen of legitimacy NBC gave it, got a $1.65 billion buyout. With NBC set to launch its own video site, the laughably named Hulu, the pulling of the YouTube plug was just a matter of time. Speaking of time: Could this move be a sign that Hulu, scheduled for "private beta" testing this month, is finally ready?