"Shaq is rich," he said, referring to the Los Angeles Lakers' Shaquille O'Neal, "but the white man who signs his check is wealthy. Oprah is rich, but Bill Gates is wealthy. If Bill Gates suddenly woke up with Oprah's money, he'd slit his throat."
https://www.crunchbase.com/organization/tbh
It took nearly 4 years of probably not making much before they hit pay dirt with TBH.
Authored in 2004, at which point Oprah had $1.1Bn[1]
[1] https://www.forbes.com/maserati/billionaires2004/LIRO0ZT.htm...
Edit: nvm, the article talks about a Chris Rock quote from the previous year (2003) at which point Oprah doesn't show up on the Forbes website.
Forbes says there are 1940 billionaires in the world today, that puts anyone over $1 billion in the top 0.0001 percent.