I believe (don't hold me to this) that ESPN and NBA TV hold US rights. I believe that for Canada The Score broadcasts any Canadian games and Raptors TV will likely get the rest. There is no reason that Raptors TV shouldn't cover it.
As I'm writing this I just found ESPN's schedule, some of these are on ESPN2, not that it matters for Canadian viewers
8/28, 11:00pm - Croatia vs. United States (tape delay)
8/29, 9:30am - United States vs. Slovenia
8/30, 2:30pm - Brazil vs. United States
9/1, 12:00pm - United States vs. Iran
9/2, 9:30am - Tunisia vs. United States
9/6, 11:00am - Round of 16
9/9, 11:00am - Quarter Final
9/12, 2:30pm - Championship Game
I'll do some looking for NBA TV's schedule. If The Score doesn't make an announcement about their coverage soon, then I'm planning on emailing them about this, Serie A and college football.
As I'm writing this I just found ESPN's schedule, some of these are on ESPN2, not that it matters for Canadian viewers
8/28, 11:00pm - Croatia vs. United States (tape delay)
8/29, 9:30am - United States vs. Slovenia
8/30, 2:30pm - Brazil vs. United States
9/1, 12:00pm - United States vs. Iran
9/2, 9:30am - Tunisia vs. United States
9/6, 11:00am - Round of 16
9/9, 11:00am - Quarter Final
9/12, 2:30pm - Championship Game
I'll do some looking for NBA TV's schedule. If The Score doesn't make an announcement about their coverage soon, then I'm planning on emailing them about this, Serie A and college football.