Apple has not offered a live streaming feed for their Macworld Keynote addresses for a number of years. One reader forwarded an email from Apple's Investor Relations which confirms that Apple will again not be providing a live feed for Macworld.
Thank you for your email. A replay will be available on http://www.apple.com/quicktime/mac.html, but there are no plans for live streaming.
Macworld San Francisco kicks off next week. Steve Jobs is scheduled to provide the keynote address at 9 AM Pacific on January 10th, 2006.
MacRumors, of course, will provide live coverage if at all possible.