Season Nine of My Three Sons premiered on September 28, 1968.
Episodes
| # |
#
|
Title
|
|
|
Airdate
|
|
|
|
| 279 |
1
|
The Great Pregnancy
|
|
|
September 28, 1968
|
|
|
|
| 280 |
2
|
Dr. Osborne, M.D.
|
|
|
October 5, 1968
|
|
|
|
| 281 |
3
|
Life Begins in Katie
|
|
|
October 12, 1968
|
|
|
|
| 282 |
4
|
The Grandfathers
|
|
|
October 19, 1968
|
|
|
|
| 283 |
5
|
The Baby Nurse
|
|
|
October 26, 1968
|
|
|
|
| 284 |
6
|
Big Ol' Katie
|
|
|
November 9, 1968
|
|
|
|
| 285 |
7
|
My Three Grandsons
|
|
|
November 16, 1968
|
|
|
|
| 286 |
8
|
Tea for Three
|
|
|
November 23, 1968
|
|
|
|
| 287 |
9
|
Back to Earth
|
|
|
November 30, 1968
|
|
|
|
| 288 |
10
|
First Night Out
|
|
|
December 7, 1968
|
|
|
|
| 289 |
11
|
Cassanova O'Casey
|
|
|
December 14, 1968
|
|
|
|
| 290 |
12
|
Expendable Katie
|
|
|
December 21, 1968
|
|
|
|
| 291 |
13
|
The New Room
|
|
|
December 28, 1968
|
|
|
|
| 292 |
14
|
The Fountain of Youth
|
|
|
January 4, 1969
|
|
|
|
| 293 |
15
|
Three's a Crowd
|
|
|
January 11, 1969
|
|
|
|
| 294 |
16
|
Chip and Debbie
|
|
|
January 18, 1969
|
|
|
|
| 295 |
17
|
What Did You Do Today, Grandpa?
|
|
|
January 25, 1969
|
|
|
|
| 296 |
18
|
Chip on Wheels
|
|
|
February 1, 1969
|
|
|
|
| 297 |
19
|
Honorable Expectant Grandfather
|
|
|
February 8, 1969
|
|
|
|
| 298 |
20
|
The Other Woman
|
|
|
February 15, 1969
|
|
|
|
| 299 |
21
|
Goodbye, Forever
|
|
|
February 22, 1969
|
|
|
|
| 300 |
22
|
The O'Casey Scandal
|
|
|
March 1, 1969
|
|
|
|
| 301 |
23
|
Ernie's Pen Pal
|
|
|
March 8, 1969
|
|
|
|
| 302 |
24
|
Ernie, the Transmitter
|
|
|
March 15, 1969
|
|
|
|
| 303 |
25
|
The Matchmakers
|
|
|
March 22, 1969
|
|
|
|
| 304 |
26
|
Ernie Is Smitten
|
|
|
March 29, 1969
|
|
|
|
| 305 |
27
|
Two O'Clock Feeding
|
|
|
April 5, 1969
|
|
|
|
| 306 |
28
|
Teacher's Pet
|
|
|
April 19, 1969
|
|
|
|
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