the schedule was played on Christmas Eve. The final Sunday night game of the season – Sunday, January 1, 2017 – likewise was a flex game; the slot was left vacant when the schedule came out as has been the practice over the past eight seasons. The game's teams (and by extension, its location) was announced after most Week 16 games. It was filled by the Green Bay Packers at Detroit Lions. Also this season, NBC was home to two Super Bowl rematches. As previously mentioned, the Carolina vs. Denver game was a rematch of Super Bowl 50. Then, 9 weeks later on a Sunday night, the Patriots hosted the Seattle Seahawks in a rematch of Super Bowl XLIX, a game that was also seen on NBC, on February 1, 2015. The Week 5 game between the New York Giants and the Green Bay Packers was placed against the second presidential debate. The debate did not air on NBC due to contractual obligations; however, it was carried by several other channels including sister networks CNBC and MSNBC. The Week 7 game between the Seattle Seahawks and the Arizona Cardinals ended in a 6-6 tie following a missed field goal from each team in the last minutes of overtime. This became not only the first tie to be featured on Sunday Night Football, but also the first tie not to see a touchdown since 1972, as well as the lowest scoring tie, and the second lowest score in the prime time slot. After the addition of Thursday Night Football to NBC's rights holdings, the network elected to give Al Michaels time off. Mike Tirico, who left ESPN to become the heir apparent to Michaels at NBC, called select telecasts in his place. On November 14, 2016, the NFL announced that it had flexed the Chiefs-Broncos game into the Sunday night slot for Week 12, replacing the originally-scheduled New England Patriots-New York Jets game, which was moved to the 4:25 p.m. ET slot as the second game of the doubleheader on CBS. With the aforementioned Week 16 matchup between the Broncos and the Chiefs already being scheduled for Christmas night (December 25), that was the second time that NBC has shown both meetings of division rivals during a regular season. On December 4, 2016, the NFL announced that it had flexed the Tampa Bay Buccaneers-Dallas Cowboys game into the Sunday night slot