The fact that four MotoGP races are being broadcast on network television in the US is great for the profile of the sport, but not so good for regular fans. For it means searching about on schedules to find exactly when the race is going to be broadcast.
Fortunately, there's the TV Racer website, which was evidently created to cope with exactly this kind of problem. And it tells us that the Misano MotoGP round is to be broadcast in the US on Speed, rather than on CBS. Broadcast time is 11pm EDT. So set your DVRs accordingly.