Some of Scrubs' special features this time around are ho-hum, including short vignettes on "The Mysterious Janitor" and more on J.D. and Dr. Cox. The only pleasant surprise is an audio commentary from Braff (who was absent from season three's commentaries and was ribbed in season two's disc for being too important shooting films to contribute), speaking on "My Last Chance," which he directed. Season Four is a letdown compared to the previous seasons' smooth navigation between belly laughs and heartache; here's hoping Scrubs' trademark hysterics get resuscitated for season five. --Ellen A. Kim