Major League Baseball will undoubtedly rewrite their apps to prevent this from working. They grab money everywhere they can, and this would be a "free" way to circumvent their Extra Innings package.
EDIT: I stand corrected — apparently the latest version of the mlb.com app allows for video out. This is an awesome*— and surprising — development! Perhaps MLB took a look at what the NFL is doing with its own app and decided they better offer video-out.
EDIT: I stand corrected — apparently the latest version of the mlb.com app allows for video out. This is an awesome*— and surprising — development! Perhaps MLB took a look at what the NFL is doing with its own app and decided they better offer video-out.