Have you ever seen ESPN3?
We're missing the ability to see basically every college football or hoop game owned by ESPN - it's impressive and there's no earthly reason for Cablevision to block it. But, they do.
I just use the UConn VPN when I'm at home. And Cablevision doesn't want to pay money to ESPN to use ESPN3, that's why. Even though everyone else does. Cablevision is just fine with their virtual internet monopoly, and is counting on people not going through the trouble of switching to FIOS and having to change their email address just to access ESPN3.
Are you a UConn alumn, or did you go to some other school? Some colleges give alumni access to VPN - if so, use it and go to ESPN3 that way.
Also, UConn-Western Michigan football will be exclusively on ESPN3.