An animated TV
show made for young French children
Starring Chapi and Chapo (French chapeaux, "hats", is pronounced like Chapo), a little girl in a big red hat and a little boy in a big blue hat respectively, the episodes of Chapi Chapo were short but sweet.
Chapi Chapo aired during the 1970s in France, and was rebroadcast in the United States on Nickelodeon's "Pinwheel" during the 1980s.
SOURCE: http://home.austin.rr.com/pylon/chapi.html, which dredged up painful memories of my own :)