"This Is Us" aired a special episode after Super Bowl LII. The title of the episode was "Super Bowl Sunday", and it dealt with a pivotal event occurring on the night after the Super Bowl 20 years ago, and then shows how the family members each deal with the memory of it on the anniversary in the present.
I'm wondering about the cause-and-effect on the part of the show creator and the network. Did he always have this plotline in mind, and then convince the network to put the show on after the game? Did he revise his plan for the show when he learned that they wanted to air it after the Super Bowl. Or did he plan the plotline, and it was a happy coincidence that the show also got the Super Bowl lead-out (which might have influenced the timing of the reveal).