According to a report in the New York Times, Sony will announce today that PS3 users will gain access to live streams of Major League Baseball games. By week's end the console will enable subscriptions to the MLB.TV service, which provides access to out-of-market contests, but not local games or others that are broadcast on TV.
The NYT doesn't have the scoop on pricing, but a web subscription to the service will run you between $100 and $120 annually, or $20 to $25 per month, depending on the features. Count on more details when the official announcement drops.
I love my MLB.TV. It lets me watch my O's every single game (on my schedule since they have all the games archived). I usually watch the games the next day.
Even the game last Saturday against the A's, which had no television in Oakland or Baltimore. It was on MLB.TV as an archive exclusive using the A's radio broadcast for audio. Loved to see that. (It had no TV because it was on during Fox's exclusive Saturday time, but even though Fox didn't air it, it couldn't be shown on TV.) MLB.Tv has advertised that they will have every MLB game this season available, even the ones that have no local market TV.
Blackout rules do apply for live games (and also for certain live games on the weekend). Basically all local market games are blacked out live (but you can watch the games when they hit the archive, generally 90 minutes after the game ends.) And on the weekends, all games are blacked out live during the Fox (on Saturday) and ESPN (Sunday nights) national broadcast window.
But since I live in Florida and my team is Baltimore, the local blackout rule doesn't apply to me (unless they are playing Tampa or the Marlins).
I would imagine that the web subscription would be able to use the PS3 app, and not require a separate subscription. I have a PC hooked to my TV, so I don't really need a PS3 app anyway. But it could helpful to some folks.