Nope. You'd need an external digital TV tuner which would connect to one of the video sources on the Onkyo. A quick google search didn't show any prepros with a built in digital TV tuners. I wonder why not?
Because all HDTV's are now required to have a tuner. There's no need to duplicate that particular feature.
Granted. I was just thinking it would be advantageous to keep all the processing in one box. Another advantage, albiet to a smaller market segment, would be to provide over-the-air TV to those with projectors as their primary display.