So we were noticing a lot more aerial activity on Saturday early during the tailgate. First 2 planes, then 3. Around 9:30-9:45, looking from the Black Lot towards Hill Center, we see 4 planes in that direction heading towards the Blue Lot and the stadium. Then we hear planes behind us, turn around, and count another 4 planes coming from the east northeast towards us. 8 planes in the air, all flying banners for whatever they were selling. Pretty neat.