I will add this, say your event starts at 7:00 and you start it right at 7:00 you will see BTN graphics and you think this should already be started. For some reason they will start it back 15-20 minutes from the beginning and you have to fast forward to the beginning of the game.
You can even watch it the next day, it will show up as a "Recent Event". For example, I can log in right now and watch last night's Huskers vs PSU soccer match.