Yeah, right from Onkyo's product page for the 606:

 Originally Posted By: http://www.onkyousa.com/model.cfm?class=Receiver&m=TX-SR606&p=i
Apart from 1080p video, the TX-SR606 can upscale all video signals to 1080i, regardless of the connection, for output via HDMI.


I'll look at the manual, too. It seems like it should be able to do it.