[Solved]: On which sitcom were the actors that played the family’s “mom” and “dad” born on the same day: June 21, 1947?

Question: On which sitcom were the actors that played the family’s “mom” and “dad” born on the same day: June 21, 1947?

Family Ties
Growing Pains
The Cosby Show
The Brady Bunch

The correct answer is Family Ties.