Treehouse of Horror XI/DVD features

"Treehouse of Horror XI" is included on the The Complete Twelfth Season.

Commentary
DVD commentary is included on The Complete Twelfth Season boxset with comments by Matt Groening, Mike Scully, John Frink, Don Payne, Rob LaZebnik, Matt Selman, and Carolyn Omine.

Deleted scenes
Deleted scenes are included on The Complete Twelfth Season boxset. An hidden deleted scene is available by selecting Sideshow Mel's bone.

Animation Showcase
An animation showcase with storyboards or animatics as picture-in-picture is included on The Complete Twelfth Season boxset.