Treehouse of Horror XIII/DVD features

"Treehouse of Horror XIII" is included on the The Complete Fourteenth Season.

Commentary
DVD commentary is included on The Complete Fourteenth Season boxset with comments by Al Jean, Brian Kelley, Kevin Curran, Matt Selman, John Frink, Dan Castellaneta, Yeardley Smith, and David Silverman.

Animatic
A hidden alternative intro and the first part from the episode as an animatic is included on The Complete Fourteenth Season boxset by selecting the chairs.

Deleted scenes
Deleted scenes are included on The Complete Fourteenth Season boxset.