MLB Extra Innings also includes MLB Network on channel 213 (HD), MLB Network Strike Zone on channel 719 (HD), and the Game Mix channel with up to 8 games in split-screen (only available in HD).
MLB.tv is supported on PC, Roku, Apple TV, PS3, PS4, Xbox 360, Xbox One, iPhone, iPod touch, iPad, Kindle Fire, Android phones and tablets, and Windows 8 phones.
Not a DirecTV subscriber? There may be discounted half-season rates with other TV providers but you’d have to call and ask because no-one else is promoting it as of this article’s publish date.