Season 4
01. One Starry Night
Mary dates a famous singer, not realizing who he is. Shelley Fabares.
02. A Rose is a Rose
Jeff needs help with his poetry homework and Mary is there to help. Unfortunately, the poetry does not sound like Jeff wrote it.
03. The Close Shave
Jeff has discovered he is growing whiskers, and decides that since he is no longer a little boy that he needs to start acting like a man. He insists on taking a job to pay his way at home.
04. Mouse at Play
Iris advises Donna that it's up to the wife to keep the marriage going with surprises and changes every now and then. When Iris goes from blond to black hair, Donna decides to go Platinum Blond! But once she comes home with her new hair color, she decides not to show it to Alex. She avoids him and quickly changes it back to the color it was whew! What a close call!
05. The Monster
First some large animal has trampled Mary's flowers. Now when Alex is out of town, Donna and the kids keep hearing noises late at night. Upon investigating, they peek out the front door window and see a large, furry creature sitting on the porch!
06. New Girl in Town
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07. One of Those Days
Nothing seems to be going right in the house. Old Man: Arthur Hunnicut. Ma: Doris Kemper. Carl Betz, Shelley Fabares.
08. All is Forgiven
Donna and Alex get involved in their friends' marital problems.
09. The Electrical Storm
Trouble ensues when Jeff tampers with the school bell. Paul Petersen, Carl Betz, Shelley Fabares. Walter: Lee Aaker. Smitty: Darryl Richard. Miss Tucker: Anne Sargent.
10. The Paper Tycoon
Newspaper-delivery boy Jeff decides to go into business. Paul Petersen, Carl Betz, Shelley Fabares. Bill: Skippy Shane. Craig: Stephen Barringer.
11. Private Tutor
Mary gets tutoring in French from a handsome student. Joel: Peter Votrian. Shelley Fabares, Carl Betz, Paul Petersen.
12. Alex, the Professor
Alex applies his child psychology to his own offspring. Carl Betz, Paul Petersen, Shelley Fabares. Dave: Lindsay Workman. Alma: Dorothy Lovett.
13. The Fabulous O'Hara
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14. Way of a Woman
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15. A Very Bright Boy
The Stones try helping a boy overcome his laziness. Victor: Johnny Crawford. Mrs. Warren: Dori Simmons. Carl Betz, Paul Petersen, Shelley Fabares.
16. The Toughest Kid in School
A meek boy tries to prove he's the toughest kid in school. Barlow: John Clifford. Mrs. Crawford: Holly Harris. Zack: Paul Engle. Paul Petersen, Carl Betz.
17. Dr. Stone and His Horseless Carriage
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18. For Angie With Love
Jeff sells his possessions to buy his girl a present. Angie: Candy Moore. Roger: Stephen Hammer.
19. Aloha Kimi
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20. Donna's Prima Donna
Mary decides to forsake college and embark on a singing career.
21. Explorer's Ten
Jeff and his friends try to raise money for a telescope. Coxey: Earle Hodgins. Earnshaw: Ken Niles. Paul Petersen, Carl Betz.
22. The New Office
Alex moves his pediatric practice out of the house and into a new office downtown.
23. The Golden Trap
While Donna and Alex are away, Mary's little get-together with a friend somehow turns into open house party.
24. Free Flight
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25. The Wide Open Spaces
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26. The Fireball
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27. Once Upon a Timepiece
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28. Hilldale 500
Alex and Jeff build a cart for the Hilldale 500. Carl Betz, Paul Petersen. Gordie: Darryl Richard. Angie: Candy Moore.
29. Winner Takes All
Jeff's team-mate on the baseball team has an overbearing father who drives the son hard and constantly berates him, thinking this will help him be a star player someday. Alex tries to set him straight.
30. Skin Deep
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31. The Fortune Teller
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32. Man of Action
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33. Donna Meets Roberta
This was actually an unsold pilot episode of ""The Roberta Sherwood Show."" Roberta Sherwood and Gale Gordon star as a typical couple raising three children in a typical small town. The only untypical thing about them is that they break into song.
34. The Caravan
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35. The Swingin' Set
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36. On to Fairview
To earn money, Jeff sells an advertising scheme to a shop. Paul Petersen, Carl Betz, Varney: Paul Tripp.
37. The Man in the Mask
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38. The Father Image
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39. Dear Wife
Mary gets carried away by the romance of a friend's wedding. Shelley Fabares, Carl Betz.