The fact is life took an unexpected turn for the ladies of "The Facts of Life" in between season six and seven. It seems Mrs. Garrett's shop Edna's Edibles has burned down! But I'm getting ahead of myself.
The episode begins on a train. The girls are catching up after a summer apart. My guess would be they all spent the summer having their hair enlarged. (Above, Tootie and Natalie sit beside one of Buffy's high school principals).
Of course the wealthiest character had the biggest hair: Blair (who spent the summer shopping) wins the crown for largest coiffure- although she'll have to hold the crown because her hair's so big it'd never fit. But that's not all . . .