The Love Boat (1977)

S02E14 Double Wedding/The Dummies/Julie Falls Hard

Two identical twin sisters make the bold choice to exchange their fiancés. Meanwhile, a duo of ventriloquists, now estranged, utilize their puppets to mend their fractured relationship. In another storyline, a charming widower asks Julie to marry him, capturing her heart as she grows fond of both him and his teenage kids.