Marla Sokoloff - 7th Heaven (S2, Ep 17)

7th Heaven is an American family drama television series, created and produced by Brenda Hampton. The series premiered on August 26, 1996, on the WB, the first time that the network aired Monday night programming, and was originally broadcast from August 26, 1996 to May 13, 2007. The series finale was scheduled for May 8, 2006; however, the show was renewed by the CW when the intended final episode received high ratings. The final season premiered on Monday, September 25, 2006 and ended on May 13, 2007.
Episode Detail: Nothing Endures But Change
After Simon's school project volcano is carelessly ruined by brainless Ruthie, it's time for him to move to his own room. He's less happy with the isolated attic he's supposed to go to, but Matt agrees to move there and hand over his room, eager to 'move' to an out of state college anyway. Wilson calls Mary, but only to babysit Billy while he takes his date to her prom. Despite home advice, Mary performs miserably, yet Wilson returns early, having decided he only wants a girl who tells he family about Billy. Lucy desperately recruits enough big sibling support to get permission to go eat in town with two 'cool' sisters. Being driven in their car is forbidden, which turns out to be a life-saver, alas literally, leaving a guilt problem.