This Dr. Horrible's Sing-A-Long Blog fan-art might contain
salon, séjour, chambre à l'avant, salle, salle de devant, signe, affiche, texte, tableau noir, tableau, affiches, plaque tournante, and platine vinyle.
A German fan has translated the first couple minutes of Act I. It's pretty well done I think. All German fans on this spot ou everyone who is interested should have a look ; )