 CONT: In the scene where House discusses the transplant debacle with  Foreman the latter is wearing the blue shirt he wore in the scene  immediately preceding. A few seconds into this scene, he now wears a  green shirt matching his necktie, which has not changed, and as  House walks away the view of Foreman from behind shows the blue  shirt again. As Foreman turns around, he has gone green a second  time.