The uplifting medicine of “Scrubs”

Twenty-five years after “Scrubs” introduced Dr. Christopher Turk (Donald Faison), he returns to our screens a changed man – though not even his best friend, Dr. John “J.D.” Dorian (Zach Braff), notices the difference at first.

When J.D., who has long moved on from Sacred Heart Hospital, surprises Turk with a mid-shift visit to their old stomping grounds, Turk puts on the usual jokey front, crouching so old J-Dizzle can leap on his back for one of their signature “Eagle” flights. Turk’s bad back makes it a brief sortie...