Tech has respectable numbers, but didn't have a great season. Two things that kept it down were its max potential. When Iowa State and Oklahoma played during the regular season they drew 3.8m people. The highest Tech had this year was 2.8m against Texas. Additionally, they had more games on T2.
If they had 10 wins and were playing for a championship I'd expect their numbers to be the same as OkSt/ISU. To the winners go the spoils.
As for Prime, they could have them on whenever you wanted. Streaming services don't have the issue the channels due, which is they can only broadcast one national game at a time (though ABC likes to do splits where they put two or three games on at the same time across the country, NFL style, to maximize total audience).
Tech’s problem is being mediocre for a long time. TCU and Baylor at least have had some good years lately. If Tech could get it together they have potential to have value, but I think they’ve got some apathy problems.
Good point on Prime, but while it may make sense to overlap actual game times to max local viewership, if it is a package deal with a conference or group of teams it might still make sense to have a traditional schedule to get carryover viewership.