Scrubs S04 E13 My Ocardial Infarction

"Laughter is the best medicine... Especially when it's your first day as a doctor."

Elliot starts showing J.D. up as the calmer, more competent doctor. A date with the Janitor leads to an a capella sing-off between his "group" and Ted's band. Turk starts taking his diabetes more serious, when he realizes the dire consequences of the disease.