My question is how are all of the Intellistars going change at once if they are at our cable headends? Is there some kind of button at the TWC HQ's they push and it sends the new GFX to the Intellistars all at once?
From what I understand and based on previous large-scale updates (August 15, 2005; October 23, 2007; June 2, 2008; and March 11, 2010), the update is downloaded by the STAR ahead of time and then TWC sends a reboot/reset command to the STAR a few minutes before the changeover is set to happen which triggers the change.