At 10 am (Pacific) today Apple will hold its “We’ve got a little more to show you” media event at which the “iPad mini” and other products are expected to be unveiled. And you have two ways to watch.
Apple has added a new “Events” channel for Apple TV users. You can find it at the main interface.
Apple will also be offering a live stream of the event at http://www.apple.com/apple-events/october-2012/ . You’ll need QuickTime to watch.