What did his granddaughter say?
She said he paid for her education but doesn't give the grandkids any money after that.
Finally someone who isn't concerned about his billions. Bully for her! People with a lot of money get more and more eccentric as they get older. Warren's personal life isn't exactly life as a model citizen. Like Soros, I don't need him to tell the rest of us how to live our lives.
I happened to watch the show as well and his granddaughter was not critical of her cheap grandfather. He is only mad because it showed him for the totally uncaring cold bas$&rd that he really is.
This statement could be taken as implying that Buffet is cheap and that money is all he cares about. That could all be true, but it could also explain why Buffet is so incensed at her.
Now that he's gone to the trouble of publicly disavowing her as his granddaughter, conspicuously pointing out that she's never been adopted and is not legally related to him, she is countering that with her own claims. That strongly suggests (at least, to me) that the two of them are positioning themselves for future litigation concerning his estate. Somehow, I don't think their difficulties with eachother are something new.