I will be giong HD on thurs.  I have 2 tv's, so i will be using 1 HD DVR.  My current DVR is connected upstairs tv and one in the basement.  My question comes with I was reading the 622 that TV1 shows 1080, where TV 2 only shows 480.  Can I switch back and forth on which tv is going to be TV1 for 1080?  Say I want to watch some sports show on my basement projector that i am also buying.........and want to see it in 1080.  Then another time, not at the same time, I am sitting upstairs and want to watch CSI, and i know it shows in HD.  Can I then change the upstairs TV to the TV1 to get higher dpi?
Any help would be great.
				
			Any help would be great.