NBA Christmas ratings mixed on ESPN/ABC - Sports Media Watch
NFL preseason's domination of NBA Christmas in TV ratings isn't as impressive as it seems
NFL dominates Christmas Day ratings; NBA mixed - Sports Media Watch
NBA on Christmas Day - Ranking the top 25 players hitting the court in ESPN's five-game feast - ESPN
NFL Christmas Day games average 22.9m viewers across Fox, CBS and NBC - SportsPro
NFL TV ratings 2017: Why viewership declined this season - Sports Illustrated
NFL preseason's domination of NBA Christmas in TV ratings isn't as impressive as it seems
NBA's Christmas Tradition Could Be ChallengedBy The NFL
NFL season ratings decline 2%, showings draw fewer viewers