The New York Times reported Monday that NBC Universal may earn more than $1 billion in TV and online advertising sales for the Beijing Olympics.

The story noted that the largest TV advertisers have not changed in recent Olympics.  Six companies, including official sponsors like Coca-Cola and Visa, were among the top 10 spenders in both 2000 and 2004, according to data from Nielsen Monitor-Plus.

View the top 20 TV advertisers and advertising categories for the 2000 and 2004 Olympics.