MLB.TV on PlayStation 3 debuted in April 2010.
May 6, 2011 update: As a result of the continuing PlayStation Network outage, MLB.TV subscribers still cannot access their subscriptions on their PS3s. We apologize for any ongoing inconvenience caused by the PlayStation Network outage and recognize that not being able to access MLB.TV on PS3 may be frustrating. We will provide new information about accessing MLB.TV on your PS3 if and when it becomes available. For more information regarding the PlayStation Network outage, please refer to the PlayStation blog – blog.us.playstation.com.