The restroom of the new Arnolds[though so much more colourful and attractive] appears to have the very same layout as the restroom of the original Arnolds.It must have been the same set redecorated.One other difference to note,was the barred window high up on the wall of the original restroom,where with help from Richie and LoriBeth,Fonzie,Ralph and Potsie managed to escape from the fire that destroyed the original Arnolds.There was no window in the new restroom.So it,s a good thing Arnolds never experienced a second fire.