I can't remember what the channels are like on the stateroom TVs. I imagine all the lounges will be crowded so we were hoping to relax and get room service and watch it. Not sure if that's possible?
On the Fantasy, there is a "Special Events" channel (channel 20), where the NFL playoffs were shown in-room last week. If the Superbowl is scheduled to be aired on ABC (a Disney-owned company), then it will be shown on channel 11 in the staterooms. (But I just checked, and it's actually being aired on CBS.) Since it's not on ABC, then I would bet that it would be on the Special Events channel.