No there are not related. Lisa is a personal friend of mine for 21 years and she andBetsy Stark are not sister.
Yes they just don't know it yet.
Betsy is actually 3'-6" tall. her legs are only 8" long and she sits on telephone books during the news broadcast.
Melissa Stark was born on November 11, 1973.
Melissa Stark is 37 years old (birthdate: November 11, 1973).