Launch time is now set at 3:52 PM and the weather forecast (at MCO) is warm (88F) with a 20% chance of rain. I would guess that a good, unobstructed place at the airport to see the launch would be at the East end of the departures level (outside). Look to the SE. It's also helpful if you have a small, portable radio to give you an idea of possible delays. I don't think there will be any TVs at or near the ticket counters on the departures level. Alternatively, you could also go to the very top level of the parking structure directly across from the main terminal building and look SE.