Ranked #22 of 24 in Season 11•−0.6 vs season avg
Against his classmate's better judgement, Ernie uses the unwitting Douglas household as guinea pigs for an experiment assigned by his psychology teacher. He cuts inches off Uncle Charley's cane to make him think he is growing taller. Ernie soon finds his father Steve is a
Fred MacMurray
Steve Douglas
Don Grady
Robbie Douglas
Stanley Livingston
Chip Douglas
Barry Livingston
Ernie Thompson
William Demarest
Charley O'Casey
Beverly Garland
Barbara
Tina Cole
Katie
Dawn Lyn
Dodie Harper Douglas
Frederick de Cordova
Director
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"The Power of Suggestion" is episode 12 of My Three Sons season 11. It scored 6.4/10 from 49 votes, ranking #22 of 24 episodes this season (season average 7.0). Directed by Frederick de Cordova, it aired on December 12, 1970.