Oprah gave away 276 brand spankin new Pontiac G-6 sedans to the lucky audience present for the taping on the 19th season. Cras. She gave them brand new cars. From CNN.com:

The billionaire talk show host told the audience that everybody will get a new Pontiac G-6 midsize 2005 sports sedan. Winfrey screamed and jumped up and down on the stage, shouting: “Everybody gets a car! Everybody gets a car!”
She then led the audience into the parking lot to check out their new cars.
Winfrey told the audience they will get to choose their own color, and the car will include special features such as XM satellite radio, OnStar Safety and heated leather seats.

I heard about this from my mom yesterday. One of her friend’s daughter was in the auduence, and had to sign a nondisclosure agreement about the car. If it leaked, they would not get their car. Of course, at the time of hearing this story, I did not know the prize was a car. I had assumed a cuisinart or something. But definitely not a car.