Some of these will probably seem ridiculously basic, but I just want to confirm some things before I splash out quite a bit of money. 1) I'm thinking of getting a Mac Mini, and hooking it up to my HDTV. However, if there are times when actual TV is on, will screen sharing allow me to continue controlling the Mac Mini from my MacBook (I warned it was basic ) assuming they're on same WiFi network? 2) Are there any limitations to using screen sharing? Is performance slowed? 3) I assume this works even if the screen is completely off? Can someone confirm this? Thanks in advance!