How to watch the Xbox E3 2013 Media Briefing

Reposted from Major Nelson:

E3 is almost here, so I wanted to let you know how you can watch the Xbox E3 2013 Media Briefing show “Xbox: A new Generation of Games Revealed.”
Watch the main event live at 12:30p ET/9:30a PT/16:30 GMT via the live global stream that will be available on Xbox LIVE and Xbox.com. If you are in the US or Canada, you can also watch the broadcast on Spike TV. 
The show will be 90-minutes and be presented without commercial interruptions.
The full show will be available later in the day for viewing via video on demand on Xbox.com and Xbox LIVE.