When does Kate & Allie return?

Kate & Allie is an American sitcom television series that aired on CBS from March 19, 1984, to May 22, 1989. The show stars Susan Saint James as the free-spirited Kate McArdle and Jane Curtin as her more traditional childhood friend, Allie Lowell. The two decide to share a brownstone in New York City's Greenwich Village after their divorces, and raise their families together.