Sports on TV: NBA gets modest Christmas TV numbers as NFL obliterates all competition - The Athletic
NFL Dominates Christmas Viewership, Far Outpacing NBA
NBA Christmas Day Games Generate Ratings Highs For ESPN & ABC
NFL, NBA Christmas: TV Ratings for Dec. 25-26, 2021 – The Hollywood Reporter
NFL Absolutely Demolishes NBA in Christmas Day Ratings – OutKick
NFL Christmas Day games average 22.9m viewers across Fox, CBS and NBC - SportsPro
NBA's Christmas Tradition Could Be ChallengedBy The NFL
NFL preseason's domination of NBA Christmas in TV ratings isn't as impressive as it seems
NFL Dominates Christmas Viewership, Far Outpacing NBA
NFL vs NBA TV Ratings: Who had the highest viewership on Christmas day? - AS USA
Move over, NBA! NFL dominates 2021 US TV viewership in 2021
NBA Christmas Viewership Falls vs. 2019s – The Hollywood Reporter