Well, here’s what Directv says about that:
...If you live in a ZIP code that is within a Major League Baseball team’s territory, that team’s games will be blacked out from the MLB EXTRA INNINGS® game package, but will generally be available as part of your local regional sports, cable or over–the–air affiliate station. Blackouts protect the local rights holders who arrange separate distribution agreements for their exclusive territories.
In addition, because of the national exclusivity of both ESPN and FOX, there are no games available for distribution via this package on Saturday during the day or Sunday at night...
I hve Extra Innings. I get pretty much every game. The only thing I can’t get is the other team’s broadcast of a local game. (I even get our local broadcasts in the Extra Innings channels.)