If you subscribe to MLB.TV, you probably have a few choices every day, from both the Cactus League and Grapefruit League. The MLB Media Center has the daily schedule with watch/listen links. I've had it the past 2 seasons. It's pretty cool what they can do and what's new for 2009. They also have separate package deals with both ESPN.com and NHL.com.
Even without the online broadcasts, there is plenty of baseball to find in the NY/NJ area between SNY/WPIX, YES, WGN, ESPN, and MLB Network.
- ESPN has 1 game (somewhere I read that their excuse was their broadcasts of the World Baseball Classic) - Houston vs. Atlanta at ESPN's (formerly Disney's) Wide World of Sports, during "ESPN The Weekend" at the Disney complex (what a shocker!).
- MLB Network's schedule is here. 61 games, 45 of them live. Several Mets games on the slate, including 1 game not otherwise televised locally in NY.
- The World Baseball Classic is in action throughout March, and there are exhibition games against MLB teams too
- WGN has both the Cubs (6 games) and White Sox (1 game).
- The hated Yankees will be on TV a lot (hey, baseball's baseball) with 11 Grapefruit League games, including one game against Team USA on March 3.
- And if you're looking for the vocal tones of Vin Scully, the Dodgers Spring schedule from their new digs in Arizona is here. I would assume he would be on KCAL and PRIME in those listings.