The Arizona Cardinals game against the San Francisco 49ers has been flexed to Saturday afternoon and will air on Amazon Prime, but also locally on Fox Channel 10.
From Amazon:
Today, the NFL and Amazon officially announced that the Week 16 matchup between the Arizona Cardinals vs. the San Francisco 49ers game on Saturday, December 26, 2020 at 4:30pm ET will be exclusively streamed on Prime Video and Twitch. The game will be available for free to Prime Members in more than 240 countries worldwide.
In keeping with the NFL’s long-standing commitment to make its games available on free, over-the-air television, the game will also be televised in both teams’ home markets.