Tabeta no Daare
English title: Who Ate It?
Japanese title: たべたのだあれ
Type: OVA
Source: Picture book
Episodes: 4
Status: Finished Airing
Aired: Jul 5, 2000
Duration: 6 min per ep
Rating: G - All Ages
Demographics: Kids

Episode 1 - Popopopopo
Episode 2 - Tabetano Daare
Episode 3 - Saru Rururu one more
Episode 4 - Hayaku Aitai na

(Source: Official Site)