I saw today's FANTASY ISLAND rerun on MeTV, and Lynn Borden appeared in a small role. In the segment "The Beachcomber", John Astin played a man who wanted to give up his job & family and live on the beach. Of course many problems come about as a result. Lynn Borden played his estranged wife who wanted to resolve the family problems, and he goes home with her after a weekend. She had a different hairdo by 1978, but she had the same face & voice. John Astin himself appeared on a S1 HAZEL episode as a crooked businessman.

https://www.imdb.com/title/tt0577801/?ref_=nm_flmg_job_1_accord_1_cdt_epp_sm_1