Season 1
Episodes
1. Leave the House-Sitting to the Dog / The Beggar Robot
1966-02-05
Osomatsu and Choromatsu mind Chibita as babysitters, but grow bored and decide to have a mysterious dog take the heed instead. / Dekapan creates a robot powered by spare change that inadvertently leads to disaster in the hands of the sextuplets.
2. Iyami's Fishing Pond / The 40 Thieves
1966-02-12
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. / Chibita plays the role of the leader of a gang of thieves who target Osomatsu for discovering their misdeeds.
3. Chibita's Stray Cat Strategy / A Thief Fell From The Sky
1966-02-19
Totoko's grandpa enlists the help of the sextuplets to stop Chibita and his gang of feral cats from attacking the fish store. / Iyami and Chibita fly around town in a helicopter to cause mischief amongst the locals.
4. The Helpful Robot / Iyami's Cleaning Store
1966-02-26
A housework robot (shaped like Chibita) causes havoc amongst the Matsuno family when he malfunctions. / Iyami runs a scam out of a laundromat to catastrophic failure.
5. There's the Shortcut / Laughing Costs 1 Million Yen!
1966-03-05
Iyami and Chibita feign construction workers to scam the sextuplets out of their money by making a paid shortcut to school. / 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.
6. Osomatsu Targeted / Chibita's Martial Arts
1966-03-12
Spooky things seem to be happening around town, leading the sextuplets to discover a secret of their own appearance. / Chibita challenges the brothers to a martial arts battle.
7. The Magical Tea Kettle / The Angry Superman
1966-03-19
Iyami scams the sextuplets with a magic kettle, actually utilizing Chibita as the secret inside. / Chibita and the shapely-mouthed Bokeo get revenge on the sextuplets for harming their frog friend.
8. It's All Fine Until You Take Off His Hat / Boar Hunting
1966-03-26
Chibita appears alongside Totoko wearing a strange hat that, when removed, changes his temperament from good to bad, leading to chaos amongst the Matsunos. / Chibita goes boar hunting and encounters the sextuplets and Iyami.
9. Iyami the Dentist / Defeat the Mosquitoes' Enemies!
1966-04-02
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". / After Chibita's mosquito colony is destroyed by the sextuplets, he and Iyami create a watermelon-shaped bomb to enact revenge.
10. I am Chibita, The Giant! / Counterattack Operation Pepen
1966-04-09
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. / A roaming minstrel and Chibita team up to enact revenge on the sextuplets with their army of cats.
11. Osomatsu-kun Gets Adopted / Chibita the Invisible Man
1966-04-16
A wealthy couple pay the sextuplets' parents to loan one of their boys out to them as a paid son, but the love they have for Osomatsu and Choromatsu is much too young for them. / Chibita and the brothers drink an invisibility potion and cause mischief.
12. The Cutie Who Moved Close By / Rampage of the Smog Family
1966-04-23
A new girl moves into the neighborhood, and the sextuplets try to put the moves on her while confusing her dad for their eerily-resembling dog. / A crime family that Chibita is a part of has business with the sextuplets, climaxing in a rainy nighttime brawl.
13. The Opposite-Head Experiment / Iyami the Designer
1966-04-30
An apple-headed doctor conducts an experiment on the sextuplets, but his seemingly strange mood swings are more than meets the eye. / Iyami works as a bespoke clothing designer for the Matsunos, but suspicions are aroused when the family's Children's Day koinobori goes missing.
14. Iyami's Ninja Methods / Keke, I'm the Class President!
1966-05-07
Ninjutsu master Iyami enlists the help of his disciples Chibita and Moguramaru to get revenge on the sextuplets. / Chibita attempts to thwart Totoko's run as Class President.
15. Chibita, Did You Turn Into a Dog? / The Suspicious Transfer Student
1966-05-14
Chibita takes the place of Dekapan's trained dog "son" when ringmaster Iyami buys him for his circus. / A student with a padlocked hat transfers to the sextuplets' school, leading to a mystery of his identity.
16. The Time Machine Sends Us to the Stone Age / The Junk Strategy
1966-05-21
The Matsunos take a trip in a wacky inventor's time machine to the age of the dinosaurs, where they meet their friends' prehistoric counterparts. / Neighbors Iyami and Chibita go to war with the Matsunos over trash disposal.
17. Chika-chan and Chibita / Don't Wake The Sleeping Child
1966-05-28
Chibita falls in love with snooty Chikako, but the sextuplets' faulty attempts at woo cause more than trouble for the little lovebirds. / The sextuplets watch over a sleepwalking boy who becomes violent when awoken.
18. Suspicious Presents / See Doctor Chibita For Tooth Decay
1966-06-04
A Santa Claus-like figure arrives in the town, in actuality a persona put on by burglar Moguramaru to hide stolen goods. / Deranged dentist Chibita enacts periodontal violence against people with better teeth than him.
19. Is Chibita a Good Boy? / Chibita's Girlfriend
1966-06-11
The sextuplets become victims of a vindictive clothesless Chibita, who tries to steal their clean clothes. / The Matsunos offer Dekapan a place for his pig "daughter" to stay, but Chibita falls in love with her without knowing she isn't human.
20. Iyami the Rude Guest / Chibita the Sailor
1966-06-18
The sextuplets' father invites work friend Iyami over for dinner, but chaos ensues in response to his disruptive behavior. / Chibita attempts to sneak onto an ocean liner under the guise of a sailor.
21. Iyami's French Eaves / Dad Ran Away
1966-06-25
Iyami runs a "genuine" French restaurant with Chibita, and receives criticism for his poor service and lack of research. / Mr. Matsuno resigns from his position as patriarch, and runs away.
22. Iyami's Diamond Dentures / Forward! Cat Troopers
1966-07-02
Ultra-rich Iyami accidentally breaks his bejeweled dentures, so with the help of his assistant Chibita, he tries to pin the blame on the sextuplets. / Chibita's army of cats ransack the town's oden vendors of his most favorite food, leading Iyami and the sextuplets to take him out.
23. The Suspiscious Mynah Bird / Chibita's Lullaby
1966-07-09
A mynah bird settles into the sextuplets' birdhouse village, but is harboring a less-than-desired guest in its home. / Chibita becomes a foster mother for a foundling.
24. Get That Lousy Fugitive! / I'm Rich, da jo
1966-07-16
No overview available.
25. The Super-Cheap Old Man / Hoe Hoe, Mountain Climbing
1966-07-23
No overview available.
26. The Fortune-Telling Machine from France / We'll Do Anything in Six Rounds!
1966-07-30
No overview available.
27. Dad's Robot Strategy / Stop the Lying Duo!
1966-08-06
No overview available.
28. Rickety Camp Riot / Be a Security Guard, Osomatsu-kun!
1966-08-13
No overview available.
29. The Sextuplets Become Seven / Promotional Sales War
1966-08-20
No overview available.
30. Go For It, Kumamatsu / Chibita's a Pet
1966-08-27
No overview available.
31. Goronyan, the Meteorologist / Lonely Kappataro
1966-09-03
No overview available.
32. Say Not the Truth / The ¥100,000 Ghost Phone
1966-09-10
No overview available.
33. Iyami's Fake Beach House / Chibita's Big Circus
1966-09-17
No overview available.
34. Chibita Walks the Tightrope / Osomatsu is a Bad Kid
1966-09-24
No overview available.
35. I Hate This Naughty Dog! / The Cries of a Child Summon the Ant Troops
1966-10-01
No overview available.
36. Chibita's Oden Neurosis / Trick the Tanuki!
1966-10-08
No overview available.
37. Papa, Please Don't Smoke / Chibita Soars Through the Skies
1966-10-15
No overview available.
38. Only Chibita Has Filial Piety / Golf is Expensive, jo
1966-10-22
No overview available.
39. Dekapan's Big Horse Race
1966-10-29
No overview available.
40. It's a First-Class Car Race, jo / Chibita the Zookeeper
1966-11-05
No overview available.
41. A Fight Over a Flower / Were You Kidnapped, Osomatsu-kun?
1966-11-12
No overview available.
42. I've Quit Safecracking!
1966-11-19
Safecracker Chibita, released on parole, mustn't break into another safe or else he'll be back behind bars. But what will happen when he must use his talents to save a life?
43. The Grand Prix Elimination Race / The Search for Chibita's Parents
1966-11-26
No overview available.
44. Let's Try to Ski for Free
1966-12-03
No overview available.
45. Please Return My Bonus! / Go For It, Kumamatsu
1966-12-10
No overview available.
46. The Arsonist Loves Oden / Fighting Robot Rampage
1966-12-17
No overview available.
47. A Dreadful Christmas Season-zansu / The Sextuplets Become Seven
1966-12-24
No overview available.
48. A Guide to a Bear Parent and Child / Dekapan Olympics
1966-12-31
No overview available.
49. Totoko-chan's New Years' Card / Laughing Costs 1 Million Yen!
1967-01-07
No overview available.
50. Skiiing in a French Fashion / I Don't Need the Magic Lamp Anymore
1967-01-14
No overview available.
51. The Scary Old Hag / Speak Not the Truth
1967-01-21
No overview available.
52. The Time Machine Sends Us to the Stone Age / Iyami's French Eaves
1967-01-28
No overview available.
53. Keke, I'm the Great Detective / Leave the House-Sitting to the Dog
1967-02-04
No overview available.
54. My Head Shines the Brightest in the World / Papa, Please Don't Smoke
1967-02-11
No overview available.
55. Headed to Chibita's Jungle / Golf is Expensive, jo
1967-02-18
No overview available.
56. Chibitaro, Born From a Peach / The Grand Prix Elimination Race
1967-02-25
No overview available.
57. Kekeke, a Surprise Aerial Attack / Special Program: "We Are Sextuplets"
1967-03-04
No overview available.
58. I've Quit Safecracking!
1967-03-11
No overview available.
59. Let's Try to Ski for Free
1967-03-18
No overview available.
60. Dekapan's Big Horse Race
1967-03-25
No overview available.