They converted a wall outlet into an extension outlet for our TV room sofa table. This outlet, built into the face of the table, allows us to utilize the electrical outlet that is behind the couch - without having to move the couch out of the way.
Buy a piece of wood from Home Depot cut to the size of your couch. Stain it with Minwax dark stain (can get at Home Depot) or whatever shade you like. Let it dry overnight or longer. Attach it to the wall with four or more L-brackets and you are done!