Synching MLB.tv to my CBS fantasy baseball team..is this possible?

This won't answer your question directly because I don't have a fantasy team on cbs, but this may provide helpful info. I do have my yahoo teams synced though. Anyways:

You can only sync fantasy teams/players to mlb.tv on your computer. Can't be done if using mlb.tv on television, phone, game system or tablet. You can definitely sync yahoo teams since yahoo fantasy baseball is the official fantasy baseball site of mlb.com this year. Because of that, I'm not sure if cbs fantasy baseball is compatible. If not, I "think" you might just be able to enter each players name individually and have them tracked that way (not sure though). If you can do that it'll do the exact same thing as syncing a team (which basically just gives you a notification whenever one of your players does something or is batting in another game you're not currently watching). Syncing a team just bypasses having to enter each player individually.

When you're watching a game on computer, the fantasy option is on the bottom info bar (same place where you choose which broadcast you want to watch).