Season
Season 12 Episode
- Season 9 The Great Pregnancy
- Season 9 Dr. Osborne, M.D.
- Season 9 Life Begins in Katie
- Season 9 The Grandfathers
- Season 9 The Baby Nurse
- Season 9 Big Ol' Katie
- Season 9 My Three Grandsons
- Season 9 Tea for Three
- Season 9 Back to Earth
- Season 9 First Night Out
- Season 9 Cassanova O'Casey
- Season 9 Expendable Katie
- Season 9 The New Room
- Season 9 The Fountain of Youth
- Season 9 Three's a Crowd
- Season 9 Chip and Debbie
- Season 9 What Did You Do Today, Grandpa?
- Season 9 Chip on Wheels
- Season 9 Honorable Expectant Grandfather
- Season 9 The Other Woman
- Season 9 Goodbye, Forever
- Season 9 The O'Casey Scandal
- Season 9 Ernie's Pen Pal
- Season 9 Ernie, the Transmitter
- Season 9 The Matchmakers
- Season 9 Ernie is Smitten
- Season 9 Two O'Clock Feeding
- Season 9 Teacher's Pet
My Three Sons - Season 9 Episode 21 Goodbye, Forever
6.50 30 minutes Young Ernie is crushed when he learns that his next door neighbors are selling their house, and his best friend is leaving the neighbourhood. Pending their separation, the two boys are together day and night; the Douglases give Gordon a touching farewell party.
