Spun off from the hit TV series "Diff'rent Strokes," this long-running sitcom chronicles the ups and downs -- and life lessons learned -- of a cadre of teen girls who attend a pricey Eastern boarding school. With housemother Edna Garrett (Charlotte Rae) around to dispense advice -- and gallons of hot chocolate -- the young ladies are in good hands. Guest stars during the show's first two seasons include Gary Coleman, Richard Dean Anderson and Helen Hunt.