1x1 - Episode 1

February 5, 1966

Osomatsu and Choromatsu mind Chibita as babysitters, but grow bored and decide to have a mysterious dog take the heed instead. Meanwhile, Dekapan creates a robot powered by spare change that inadvertently leads to disaster in the hands of the sextuplets.

1x2 - Episode 2

February 12, 1966

Iyami attempts to con Osomatsu, Choromatsu, and Chibita out of their hard-earned money at his fishing pond with a rare fish that gives them all their money back if caught. Later, Chibita plays the role of the leader of a gang of thieves who targets Osomatsu for discovering their misdeeds.

1x4 - Episode 4

February 26, 1966

A housework robot (shaped like Chibita) causes havoc amongst the Matsuno family when he malfunctions. Meanwhile, Iyami runs a scam out of a laundromat to catastrophic failure.

1x5 - Episode 5

March 5, 1966

Iyami and Chibita feign construction workers to scam the sextuplets out the their money by making a paid shortcut to school. Later, a camera company offers a cash prize for whoever can photograph a face-making man without any made faces, leading the sextuplets and Chibita to try to claim the reward.

1x6 - Episode 6

March 12, 1966

Spooky things seem to be happening around town, leading the sextuplets to discover a secret of their own appearance. Meanwhile, Chibita challenges the brothers to a martial arts battle.

1x7 - Episode 7

March 19, 1966

Iyami scams the sextuplets with a magic kettle, actually utilizing Chibita as the secret inside. Later, Chibita and Bokeo get revenge on the sextuplets for harming their frog friend.

1x8 - Episode 8

March 26, 1966

Chibita appears alongside Totoko wearing a strange hat that when removed, changes his temperament from good to bad, leading to chaos amongst the Matsunos. Meanwhile, Chibita goes boar hunting and encounters the sextuplets and Iyami.

1x9 - Episode 9

April 2, 1966

Osomatsu visits dentist Iyami's office for a toothache, but due to an unpaid bill, assists him in fixing up the mouth of Dekapan's crocodilian "son". Later, after Chibita's mosquito colony is destroyed by the sextuplets, he and Iyami create a watermelon-shaped bomb to enact revenge.

1x10 - Episode 10

April 9, 1966

Chibita, with the help of his scientist uncle, devise a plan to shrink the sextuplets down to flea size so that he will no longer be shorter than them. Meanwhile, a roaming minstrel and Chibita team up to enact revenge on the sextuplets with their army of cats.

1x11 - Episode 11

April 16, 1966

1x12 - Episode 12

April 23, 1966

1x13 - Episode 13

April 30, 1966

1x14 - Episode 14

May 7, 1966

1x15 - Episode 15

May 14, 1966

1x16 - Episode 16

May 21, 1966

1x17 - Episode 17

May 28, 1966

1x18 - Episode 18

June 4, 1966

1x19 - Episode 19

June 11, 1966

1x20 - Episode 20

June 18, 1966

1x21 - Episode 21

June 25, 1966

1x22 - Episode 22

July 2, 1966

1x23 - Episode 23

July 9, 1966

1x24 - Episode 24

July 16, 1966

1x25 - Episode 25

July 23, 1966

1x26 - Episode 26

July 30, 1966

1x27 - Episode 27

August 6, 1966

1x28 - Episode 28

August 13, 1966

1x29 - Episode 29

August 20, 1966

1x30 - Episode 30

August 27, 1966

1x31 - Episode 31

September 3, 1966

1x32 - Episode 32

September 10, 1966

1x33 - Episode 33

September 17, 1966

1x34 - Episode 34

September 24, 1966

1x35 - Episode 35

October 1, 1966

1x36 - Episode 36

October 8, 1966

1x37 - Episode 37

October 15, 1966

1x38 - Episode 38

October 22, 1966

1x39 - Episode 39

October 29, 1966

1x40 - Episode 40

November 5, 1966

1x41 - Episode 41

November 12, 1966

1x42 - Episode 42

November 19, 1966

1x43 - Episode 43

November 26, 1966

1x44 - Episode 44

December 3, 1966

1x45 - Episode 45

December 10, 1966

1x46 - Episode 46

December 17, 1966

1x47 - Episode 47

December 24, 1966

1x48 - Episode 48

December 31, 1966

1x49 - Episode 49

January 7, 1967

1x50 - Episode 50

January 14, 1967

1x51 - Episode 51

January 21, 1967

1x52 - Episode 52

January 28, 1967

1x53 - Episode 53

February 4, 1967