I’ll start a list. If you think of any other examples of television families in which one or both parents were “inexplicably sterile” in the ’50s and ’60s, let me know.
Leave It to Beaver: Cleavers, 2. Rutherfords, 2. Haskells, 1. Mondellos, 4 (miserable/abusive household).
Dick Van Dyke Show, Petries, 1. Helpers, 1.
Ozzie and Harriet, 2.
Andy Griffith Show, 1 *father a widower.
Donna Reed, 2.
I Love Lucy, 1.
My Three Sons, 3 *father a widower.
Happy Days, 3.
Beverly Hillbillies, Clampetts, 1 *father a widower. Bodines, 2 (Twins) *mother a widow
Father Knows Best, 3.
Make Room For Daddy, 3 (blended).
The Brady Bunch, 6 (blended), remarried widow and widower produce no children together
Dennis the Menace, 1.
The Munsters, 1.
The Addams Family, 2.
The Patty Duke Show, 2, plus 1 identical cousin.
The Flintstones, 1 Flintstones, 1 Rubbles.
Honeymooners, 0. (Dr. Mazza says Jackie Gleason set it up thusly because parents arguing in front of their children wasn’t acceptable back then.)