This episode was never aired.
Tommy Lasorda (1927-2021) was the LA Dodgers' manager from 1976-1996.
Vanessa says that she graduated high school and moved to start a new life 15 years ago - also that she hasn't seen her high school friends since the early seventies. This would make her at least 32-33 years old to Matt's 22 years (although if she graduated as late as 1975, fifteen years later is only 1990. The show was produced in 1993.)
"Half-breed was sung by Cher in 1973; likely that is the year the women graduated since it reminds them of their prom.