So USC and UCLA are covered.
Reason PAC couldn't get a media deal was because USC/UCLA were leaving and OR and WA could not support the other 8 teams. So the payout was $20-30M per school. With USC/UCLA, they might have gotten 30-40M... which is why USC UCLA left.
WA and OR at 30M to start per year
FOX gave the green light so i suspect the Big10 Media deal increased by 60M per year. But it would not have been something formally announced. With 18 schools it is possible that the other schools will just get 4 million less. But i doubt it. I suspect that there will be B10 after dark games to cover that. USC at UCLA, UCLA at Washington, Washington at Oregon, UCLA at Oregon, USC at Washington - All 5 on different weeks. Only 1 would have existed prior to adding Washington and Oregon. 1 or 2 of these games might get picked in other time slots i assume
FOX also announced Friday night B10/Big12/MW games after WWE Smackdown went to USA. LOL, as i was writing this i googled to see if games were already announced.... my suspicion was OR and WA has to accept some Friday night games. John Wilner tweeted the same
So some B10 after dark, some Friday Night BIG with OR and WA (and probably UCLA) having to accept a Friday night game.