sorry guys, i got x cast confused with watch ESPN
http://espn.go.com/watchespn/index
watch espn is available free if you are on a university/school network or if you are getting internet service through Bend Broadband, Bright House Networks, CableVision - Optimum, Comcast XFINITY, Cox, Mid Continent Communication, Time Warner Cable, and Version FiOS TV
and it looks like you only need to be using one of those for the events that are being broadcast on cable already, all the other events that are not being broadcast on cable look to be free to all
sorry about before and hope this helps