"Why 2023? It starts with expiring TV contracts. The ACC and SEC both have long-term media grant-of-rights agreements, running through 2035-36 and 2033-34, respectively. But the other three Power 5 conferences have agreements ending roughly around the same time (the SEC's Tier 1 deal with CBS runs through 2023-24). The Big Ten last summer opted for a shorter agreement with Fox and ESPN, which runs through 2022-23. The Pac-12 deal expires after the 2023-24 sports year, and the Big 12's ends the following year."