I understand that Sebring 12 hr race will be broadcast live on ESPN3. Is there a channel number for that in the tv channel lineup? If not, does that mean the only way to watch the race live is on my computer via xfinity.com?
Channel lineups and numbering vary by your location. You can check your channel lineups under the blue PROGRAMMING button on top of this page. Or go to Fancast.com and look for the tv lineup. No one here can tell you that without a location and we have no access to your account information to see if you are on the correct tier to receive that channel.