From Today News
Apart from DirecTV, only few operators present the MLB Extra Innings this season. According to TVPredictions.com, Dish Network won’t broadcast MLB Extra Innings either in standard or high-definition. Cox Communications in Rhode Island and San Diego will provide high-definition version of the games. Cablevision will carry the games but have not disclosed the amount of games and which areas the games will be broadcasted.
I heard this interesting story from Time Warner bring MLB Extra Innings 2008 In HD