Homer's Barbershop Quartet/DVD features

"Homer's Barbershop Quartet'" is included on the The Complete Fifth Season and The Simpsons: Backstage Pass.

Commentary
DVD commentary is included on The Complete Fifth Season boxset with comments by Matt Groening, Mike Reiss, Al Jean, Jeff Martin, Hank Azaria, Jon Lovitz, and Mark Kirkland.

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