Are you guys getting to see the "extra scene" that comes before Xmas Invasion? It was broadcast in the UK as part of the Children in Need charity special and deals with the immediate aftermath of the regeneration, before the Tardis crash lands in London at the start of the Xmas Invasion episode (the Doctor going on about having big hair, bad skin and a mole, and Rose accusing him of being a Slitheen in disguise). Maybe it got tacked onto the beginning of Xmas Invasion for broadcasts in the USA? It's only about 5 minutes long, but it'd be a shame if they dropped it as it nicely shows Rose's reactions to the regeneration and the Doctor experiencing his first regeneration problems.