MLB.TV Help Center
I see an error message that I am already logged in.
In rare cases, customers have forgotten to log out of their account on one computer and have tried to log in again on a separate computer. Since sharing of a single username and password is strictly prohibited, you will get an error message. If you receive such an error message, please call MLB Customer Service toll free in the U.S. at 866-244-2291 (International customers can dial 315-203-6761) for further assistance.