On the INT in the EZ. Once it's intercepted, it's a touchback if he kneels down, fumbles and a teammate recovers, or runs it out of the EZ behind the Goal Line. If he brings it out and retreats back into his own EZ and is tackled or kneels down, it's a safety. If he runs around and fumbles in the EZ and the passing team recovers, it's a TD. Running it out the back or side of the EZ is a the same thing as taking a knee, which is the "safe" thing to do, but sometimes knuckleheads want to bring attention to themselves.
Initial call of it being TCU's ball on the punt was 100% totally incorrect, but they got together and got it right. If the kicking team is the first to touch the kick, the ball is NOT dead and the receiving team can pick up the ball, run, and even if they fumble it will come back to the spot of the illegal touching, assuming there are no fouls, etc.
Kuddos to those that answered these correctly.