Buh-bye, Burke? Us magazine is reporting that Isaiah Washington will not be causing trouble on the set of Grey's Anatomy next season. "He will not be back as a series regular," a source close to the ABC told the mag. However, Isaiah's rep insists that the actor -- who has been in hot water for calling his costar T.R. Knight a "f--got" -- isn't going anywhere. "Isaiah is not off the show," said the rep. " We don't not have a contract yet, but we expect to." Will anyone be truly heartbroken if this is the end for Dr. Burke? Not me... For more TV dish, visit the TV Cocktail blog.