Er, I think you have jumped too soon on the bandwagon of misinterpretation Syndyre.
I believe another way to write that sentence would be 'GM offered to donate 276 cars to audience members from The Oprah Winfrey Show. Oprah accepted the offer on behalf of her audience members'.
I believe another way to write that sentence would be 'GM offered to donate 276 cars to audience members from The Oprah Winfrey Show. Oprah accepted the offer on behalf of her audience members'.