This Dr. Horrible's Sing-A-Long Blog screencap might contain
quarto de família, quarto familiar, sala de estar, sala, sala de frente, salão, sala da frente, show, and concerto.
Dr. Blog-Bot of DoctorHorrible.net, a fã site dedicated to Dr. Horrible's Sing-Along Blog says that Joss Whedon has promised very special DVD extras including a "musical commentary."
"Dr. Blog-Bot of DoctorHorrible.net, a fã site dedicated to Dr. Horrible's Sing-Along Blog discusses how fãs reacted to issues during the Joss Whedon web series debut and how the faithful have taken to it since."