Chele,
All we have to do is to have the NFL producers to let the local affiliates know the exact game end times, then the affiliates can send their updated start times to the guide data providers who could then update all of the guides before the program starts. Ain't gonna happen. Two easier alternatives:
1. Pad the end times of programs following live sports by 30 minutes or so.
2. Move to the West Time Zone. We rarely have that problem out here. [Sports begin/end 3-hours earlier.]