Copy and paste from HK. This is off the new 740 description.

Digital audio meets digital video. Ready for the future, the AVR 740’s DCDi® by Faroudja video processing flawlessly upscales all incoming video to 720p or 1080i high definition and outputs it through an HDMI™ jack.

this is off the 7300 owner's manual.

DCDi™ by Faroudja® video processing and
upscaling customize the video output to
match your display for the highest video
quality, regardless of the input source. All
video parameters are adjustable separately
for each video input.