Using Nielsen TV ratings data for The Masters between 1977 through 2008, it reveals that only 7 times over that 32 years span did the Nielsen reach at least an 11.0 rating. 4 of those years (1997, 2001, 2002, 2005) coincided with a Tiger Woods victory.
FORBES: Tiger Woods Escaping Disqualification means CBS, IBM Escape Ratings Downfall