Question: I need some Grey's Anatomy scoop, please!
Answer: In Episode 4, McSteamy and McDreamy cross swords over how to treat a burn victim. And there's no more mystery as to what Diahann Carroll will be doing on the show. According to this spoileriffic ABC promo, she'll be playing — as many of us suspected — Burke's mom. (That noise you hear is Shonda Rhimes tearing ABC's promo department a new one.)