After PBS decided to not renew their US distribution agreement to broadcast the show on PBS Kids in Early-2021, it was picked up for reruns on Cartoon Network's Cartoonito block in September before being removed the following year once Peacock got the US distribution for the CGI revival series.
There's been much criticism that one brief scene in the intro shows Caillou very upset and bang on the floor, which is not too fitting for a kids cartoon opening.
This show stars three girl actresses voicing Caillou - Bryn McCauley, Jaclyn Linetsky until 2002, and Annie Bovaird.
Caillou stopped wearing a gray shirt in 2000
As of now this is the worst children's animated show which is hated by all critics and people around the world due to the main character always throwing temper tantrums being mean to his little sister and his friends being spoiled rotten getting into trouble and never gets grounded. However a series of YouTube videos about Caillou getting grounded were very popular than the actual show as to why the character himself never got in trouble.