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 7 My Three Grandsons
6.50 30 minutes The day -- or rather the night -- of the big event finds expectant mother Katie quite calm, and Steve and Uncle Charley quite the opposite, and a hapless father to be off on Army manouvres. At the hospital, Katie gives birth to identical triplet boys and Steve must adjust to the fact that he is a Grandfather, three times over.
