For how many seasons did the series in which Courtney Thorne-Smith played Lyndsey McElroy run ?
Courtney Thorne-Smith:  She is best known for her roles as Alison Parker on "Melrose Place", Georgia Thomas on "Ally McBeal", Cheryl in "According to Jim", and her recurring role on "Two and a Half Men" as Lyndsey McElroy.
i don't know