show me where that is stated?

both formats allow for the possibility of full HD and what ever the player can output over component (i.e. some players are just 1080i like the Toshiba, Samsung.... over HDMI).

What AACS gives to the studio is an option to demand downscaling over none encrypted or not. This feature is called ICT and all players must down scale if the flag is set to on by the studio. So if your player can manage 1080p over component, and you put in Spiderman in the player and Sony set ICT to on then you would get 1080p from the component, if on the opther hand TW sets LOTR to off then that player must downscale it (let's say 540p).

I used TW and Sony, because we know from different sources that Disney, Sony and Fox where all for dropping ICT and not demanding HDCP for full rez, but that TW was dead set against it (Disney, Sony and TW are on the AACS board)