My understanding is that you need a cable login to watch MLB.tv postseason streams. In other words, think of that $10 as a charge to stream to a browser/iOS device instead of access to the stream itself. Since FoxSportsGo and TBS online are actual things, it's a pretty pointless $10 to spend. Long story short, you need a cable login or a streaming package like SlingTV or Vue that gives you access to FoxSports 1/TBS. Without them you won't be able to (legally) stream playoff games. But what about game 2?