Sterling K. Brown is best known for his role as Randall Pearson, the adopted son and adoring father on the hit NBC show “This Is Us.” In this week’s “Sunday Sitdown,” Willie Geist talks to the actor about the huge success of that show, the 13-year grind before landing that breakout role and his emotional connection to his new movie, “Waves.” (Original broadcast date: November 17, 2019)