in theepiwsode Horray four Holllywood mr, drummon said hewas goingto add on a room four wills buthen inthey episdoe wear aronold gets into trouble four leaveing sam alone by himslef maggiesked per to move out so wills could have his own room wichich one is it ?

That was solved once the producers fired Dana Plato with the excuse of sending Kimberly to study abroad and so Pearle didn't need to move and Willis simply moved into Kimberly's former bedroom.