I don't have a mini yet, but close. I was thinking about this today. I would like the mini, a apple thunderbolt display and a HDMI connected TV. If I play a movie/tv show on let say the HDMI TV, and use the thunderbolt display for safari, does the sound for the movie/tv show come out of the tv and out of the speakers on the thunderbolt display? Can you control this? Thanks for any help.