1. Go to http://espn.go.com/espn3/index
2. Click on Watch Now.
3. Select ATT from the ISP drop down menu. Click Continue.
4. On the ATT login screen, select Sign Up Now.
5. Follow instructions to create a NEW, FREE account.
6. Go to http://espn.go.com/espn3/index
7. Click on Watch Now.
8. Select ATT from the ISP drop down menu. Click Continue.
9. On the ATT login screen, and login to ATT with the account you just created.
10. You now have access to ESPN3 video.
Good luck and tell us if this works!