I've got a TV hooked up w/ a mini-display-to-HDMI adapter and I'd like to be able to run iTunes exclusively, full screen, on the second screen. I've been able to switch shows and movies to full screen mode via QuickTime and watch them like that, but I can't keep my other apps in Full Screen mode if I do that. Is there a way to watch shows, full screen, on a second screen AND freely use your computer as usual? I probably can't download any new software (I'm in a hotel on an island). I'm on a March-2011 15" Macbook Pro, running the latest Lion and the latest everything else.