From the 1st season dvd. Episode entitled "DOPE". Blair takes a friend up to Tumpy's room to become a part of "the group"..they got in way over their heads. One of the girls in this scene is played by Helen Hunt.
The Facts of Life was an American sitcom which ran on the NBC network from 1979 to 1988. A spin-off of the sitcom Diff'rent Strokes, the series' original premise focused on the character, Edna Garrett (played by Charlotte Rae), as she became housemother to seven young girls at the Eastland Academy in Peekskill, New York.