Grey's Anatomy: 4x01 - A Change Is Gonna Come

• Lexie starts her internship and meets her half-sister, Meredith; as her name suggests, Lexie is also annoying
• Callie begins her reign as Chief Resident, which makes everyone kind of hate her
• Cristina misses Burke, Alex misses Ava/Rebbecca, and McSteamy misses McDreamy
• Meredith and Derek break up and then have sex
• Izzie revives roadkill, which is cute-bizarre and Shonda Rhimes revives Gizzie, which is bizarre-disturbing