@WreckinGT I'll expand a little more. I missed the 3:30 game, so that would be two additional games per week in the ESPN inventory.
Look at the available time slots. Adding up Saturday only time slots, there are at least 23 slots for ABC and ESPN stations. During regular season, discounting early season OOC games, the SEC can have a maximum of 8 games, and the ACC can have a maximum of 9. If every one of those games was on Saturday, there would still be six time slots available for other games. Some of those games will be on Thursday or Friday, which could bring the total available time slots up to 27 to 29 slots. ESPN will also be broadcasting Big 12 games, but they only have 60% of those games, so about four games per week. If ESPN broadcasts every SEC, ACC, and Big12 game in their inventory on Saturday they would still have two time slots to fill with something else.