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NO there is a built in MLB.TV app but it is subscription based. There are a game or 2 a day that are free but you don't get a choice.

Free games? Really? Never heard this before. How can you tell which games are or will be available for free? I just selected MLB.TV on my :apple:TV and don't see anything that indicates that any games will be available for free, but there are only 2 games in progress at the moment.
 
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