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.

Join globe-trotting bunny Buster Baxter as he hops across America embarking on adventures, making new friends and exploring other cultures in this charming show aimed at grammar schoolers. The four-episode collection includes a trip to Virginia Beach, Va., in "Buster's League of Champions"; a stopover in Winchester, Ky., in "Best Friends"; a visit to Chicago in "A Sense of Direction"; and a Pacific Northwest sojourn in "Sleepy in Seattle."

Postcards from Buster centers on Buster traveling to various places around North America, usually in the United States but also in the Caribbean, Canada – and other places – with his father, who is a pilot for a group of musicians. In each episode Buster meets children in the location, who show him aspects of their family lives and local culture. The sequences with Buster are animated, while the portions featuring the children are live action (viewed from the viewpoint of Buster's video camcorder). After each trip, Buster sends to Arthur a "video postcard" videotape summarizing what he's done and who he's met in each location. The children and their families that are presented on the series are meant to be multicultural and diverse, and range from a Mormon family in Utah to a Mestizo family in Texas.

In the first of two episodes, Buster learns about big and small worries when he visits sisters Erin and Hannah, whose father is deployed in Iraq. And, in "Buster's Baseball Merengue," he experiences the cultural delights of the Dominican Republic. Buster makes a video postcard for Erin and Hannah's dad and solves a mystery at a Missouri Army base, then jets off to the Caribbean as an unofficial baseball scout for the Elwood City Grebes.