The 2001 World Series telecasts (New York Yankees vs. Arizona Diamondbacks) claimed the largest U.S. TV audiences in recent memory: 24.5 million viewers per telecast, on average. 
But the late Seventies and early Eighties remain the true glory days of World Series TV viewership.
The 1980 World Series telecasts — the last time the Philadelphia Phillies won a World Series — drew the largest per game TV audiences on record: almost 54.9 million average viewers.

More than 22 million people — and 17 million U.S. households — watched the first night of the 2008 Democratic National Convention on Monday, August 25.
A large percentage of African American households (24%) tuned in for the night’s speeches, which included a keynote address by Michelle Obama. 
Among White households in the U.S., 14.6% watched the convention Monday night, while just 7.3% of Hispanic households tuned in.
Viewers age 55 and older also dominated the TV audience Monday night – 16.6% of all Americans in that age group watched the first night of convention coverage broadcast live during primetime on ABC, CBS, NBC, …