GREY'S ANATOMY - &quot;Start Me Up&quot; - Arizona seeks Mark's advice as she tries to reconcile with Callie, who has big news of her own; Teddy must make a key decision for Henry during his surgery; and on the same day the residents receive a new crop of interns, the Chief announces he is looking for a new Chief Resident, on &quot;Grey's Anatomy,&quot; THURSDAY, JANUARY 13 (9:00-10:01 p.m., ET) on the ABC Television Network. (ABC/DANNY FELD)SARA RAMIREZ