My Three Sons: Season 12
This season started on September 13, 1971. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|
| 1 | The Advent of Fergus · 25 min | |
| 2 | Fergus for Sale · 25 min | |
| 3 | Lady Douglas · 25 min | |
| 4 | Goodbye, Fergus · 25 min | |
| 5 | Four for the Road · 25 min | |
| 6 | Polly the Pigeon · 30 min | |
| 7 | Happy Birthday, Anyway · 25 min | |
| 8 | Proxy Parents · 25 min | |
| 9 | The Enthusiast · 25 min | |
| 10 | Katie's Career · 25 min | |
| 11 | Polly's Secret Life · 25 min | |
| 12 | The Sound of Music · 25 min | |
| 13 | TV Triplets · 25 min | |
| 14 | Three for School · 25 min | |
| 15 | Alfred · 25 min | |
| 16 | Buttons and Beaux · 25 min | |
| 17 | Peanuts · 25 min | |
| 18 | Bad Day for Steve · 25 min | |
| 19 | Second Banana · 25 min | |
| 20 | Bad Day for Barbara · 25 min | |
| 21 | The Birth of Arfie · 25 min | |
| 22 | Lonesome Katie · 25 min | |
| 23 | Barbara Lost · 25 min | |
| 24 | Whatever Happened to Ernie? · 25 min | |
