Video : Ma'ternal Affairs

Fran decides to do a little investigation on the man her mother is seeing, and discovers him to be a lovely man. Sylvia finds out she was at the doctor's office and breaks up with Fran. Fran then decides to give her father a few hints for pleasing Sylvia and turn their boring marriage around. The two couples go out for dinner, and Morty runs into Dr. Razzo in the men's room. Fran tries to talk her father into not giving up on Sylvia, and Dr. Razzo supports her. Morty goes back to the table and sings a romantic song for his wife, solving once and for all their marital conflicts. Meanwhile, Niles makes his stage debut on Gracie's school play – and makes a fool of himself.

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S06E18 - The Producers