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Series / Inai Inai Baa!

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Wan-Wan, U-tan and the 2015-2019 onee-san Yuki.

Inai Inai Baa! is a Japanese children's show. It premiered on the NHK on April 1, 1996, and has been running since. In North America, the show airs on NHK's international feed, TV Japan. VTV7 in Vietnam airs a Foreign Remake, Ú Òa. It's also available on Netflix.

Inai Inai Baa! is an educational series starring Wanwan the anthropomorphic dog and a female child host known as Onee-san, or "big sister". A character named U-Tan was introduced later on in the series. The show is a children's sing-along show in the same vein as Barney & Friends.

If you're wondering, the show's title basically means "peek-a-boo" in Japanese. In fact, the aforementioned Netflix release, as well as the TV Japan website and the official English dub, both rename the show Peek-a-Boo.


Inai Inai Baa! provides examples of:

  • Amazing Technicolor Wildlife: The otherwise white-furred Wanwan has green fur on his ears, arms, feet, and tail. Not really that common of a color scheme for dogs.
  • Animate Inanimate Object: Some of U-tan's friends are a toy box, a superhero toothbrush, a pink blanket, a blue pair of shoes, a tissue box girl, a potty seat and a toilet king.
  • Canon Discontinuity: The official 20th anniversary DVD seems to do this to the 1996-97 era of the program, as all of the clips of Kana-chan shown are from 1997 and later. In addition, the puppet character Penta is not mentioned on the disc unlike Kuu and Dada.
  • Clip Show: The "Memories" feature of each of the final DVD releases for a specific onee-san are comprised of clips of their stint on the show set to whatever the theme song of that DVD is.
  • Advertisement:
  • "Double, Double" Title: The songs "Penguin Penguin" and "Hajimete Hajimete" have this.
  • Early Installment Weirdness:
    • U-tan wasn't in the show prior to 2003. Instead, there was a mascot called Kuu that served a similar purpose to her.
    • Kana originally dressed in a poodle outfit for the first year of the program before changing to her rainbow alien-esque costume. Also, there was a yellow star puppet named Penta who would be replaced by Kuu around the same time Kana's costume changed.
    • The segments that taught kids an educational aspect like toilet-training or teethbrushing used to be done in anime style rather than live action.
    • When Yuki first appeared, she wore a blue version of Yuuna's outfit.
    • In the Vietamese version, Nana was a person dressed in a cat outfit before she became a full-bodied costume character like Wanwan.
  • Edutainment Show: This show teaches young children about various early childhood concepts, from toilet-training to toothbrushing to colors.
  • Every Episode Ending: At the end of each episode, the characters will say goodbye to the viewer by playing peek-a-boo and yelling "Inai inai bye bye!".
  • Everything's Better with Penguins: The song "Penguin Penguin" features the characters singing about various kinds of penguins. In earlier versions of this segment, U-Tan dressed up like a penguin.
  • Excited Show Title!
  • Fake Interactivity: One of the recurring segments on the show featured an animated caterpillar named Mushimushi-kun who often "interacted" with the children watching. For example, in one segment, he offered the viewers a drink by holding his opened can of juice up to the screen for them to drink out of, and in another segment he played catch with the viewers using a balloon.
  • Female Feline, Male Mutt: In the Vietnamese version, Wanwan the male dog is accompanied by a female cat named Nana.
  • Funny Animal: Wanwan is an anthropomorphic dog.
  • Fleeting Demographic Rule: This is the reason for the onee-san on this show changing every four years, and the song used for the exercise changing every eight years.
  • Long Runner: It premiered in 1996 and is still going.
  • Once an Episode: In every episode, babies will come out to do whatever exercise is the current one with the oneesan and Wanwan.
  • One, Two, Three, Four, Go!:
    • The song "Asobou! Asobou!" has Rina sing the line "One, two, three, four, go-go!".
    • The song "Kanpa~i!" contains a line that goes "One, two, Wanwan!" before the second chorus. "Wan" is also the Japanese pronnounciation of "one".
  • Pokémon Speak: The short-lived puppet character Daa-Daa spoke like this, occasionally making other sounds as well.
  • Pop-Cultural Osmosis: "Inai inai baa!" is the Japanese phrase used in what is known to the English-speaking world as "Peek-a-boo". But since this show premiered, it's impossible for some people in Japan to hear the phrase and not think of this show. It doesn't help that the characters sometimes yell "Baa!" to introduce themselves, and that every episode ends with the characters playing peek-a-boo to say goodbye to the viewer.
  • Quarter Hour Short: With the exception of episodes broadcast from 1997 to 1999 which were 10 minutes and the Wan Wan Wonderland specials being 30 minutes long, the show has always run for 15 minutes.
  • Rewritten Pop Version: Two songs from the Yuki-chan era (2014-2019) were given J-Pop covers, with Yuzu covering "Kanpai!" and GReeeeN covering "Popopopopose", the latter of which became more popular than the original song and inspired a dance challenge on YouTube.
  • Ridiculously Cute Critter:
    • U-tan is a cute little humanoid... something with a big head, big eyes, and little rattles on her head.
    • Before U-tan, there was Kuu, a cute, pink cloud monster with green hair.
  • Shave And A Haircut: In one Haru-chan era segment where she guesses what instrument Wan-Wan is playing, he plays this tune on one of the instruments.
  • Toilet Training Plot: The show has three songs about this, which are sung by U-Tan and her toilet and potty seat friends Benki and Omarun:
    • The first, "Toire ni Ittoire", was used in the Fuuka-chan era and was about how refreshing it is to poop in the toilet.
    • The second, "Toire de su~", is about peeing in the toilet. It began being used in the Koto-chan era and still airs as a regular segment to this day.
    • The third is "Toire yoitoko yottoire", involves Benki and Omarun singing about the job they have, with U-Tan coming in soon afterward to use the bathroom. It only appeared during the Yuuna-chan and Yuki-chan eras.
    • Before U-Tan came around, the puppet character Kuu also had two animated segments about potty training: "Gattan Omaru no Densha", where Kuu imagines a potty as a train, and "Chii Shichao", a song about peeing.
  • Vocal Dissonance: Wanwan’s voice. You’d think he’d have a low, gruff voice that’s fit for a dog his size, or a childlike voice that’s in line with the show's demographic. Instead, he sounds a lot like Suneo...


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