The show revolves around the lives of 8-year-old Arthur Read, an anthropomorphic aardvark, his friends and family, and their daily interactions with each other.

Postcards from Buster is a children's television series for children aged 6–12, containing both animation and live-action that originally aired on Public Broadcasting Service. It is a spin-off of the Arthur cartoon series. The show stars Arthur's best friend, 8-year-old rabbit Buster Baxter. Inspired by a 2003 episode of Arthur entitled "Postcards from Buster", the television series was produced by Cinar and Marc Brown Studios. It first aired October 11, 2004, on PBS Kids Go!. Buster's interests include eating anything, reading comic books, and playing video games. Buster's personality is that of a fairly intelligent and curious child. He also believes that extraterrestrials are real. Buster's parents are divorced; in this series, Buster is seen with his father, Bo Baxter.