Does the upscaling on the Onkyo automatically adjust to the screen its connected to? I have an 875 connected to a 1080p tv but was wondering if i connect it to my 720p projector will the onkyo step the picture down to 720p or will it send it as 1080p and then the projector with down scale the image to 720P? Can i alter the setting to 720p in any of the menus?