When does Step By Step return?

Patrick Duffy and Suzanne Somers star as single parents Frank and Carol Lambert, each with three children, who wed and form a blended family. The series was created and executive produced by William Bickley and Michael Warren. It aired from September 20, 1991, to August 15, 1997, then moved to CBS, where it aired for seven seasons.
Frank Lambert, a divorced contractor, has three children: John Thomas (J.T.), Alicia (Al), and Brendan (Brendan) Foster has three kids: Dana, Karen, and Mark. Frank and Carol Foster marry while vacationing in Jamaica after a whirlwind courtship. They planned to keep their marriage a secret, but Frank accidentally reveals to J.T. that they are married.