I Am Weasel was originally a part of the Cow and Chicken show, often airing as the third of three segments in an episode, after two Cow and Chicken segments. Eventually, I Am Weasel was spun off into its own series, aired in 1999 with reruns airing until April 2006, with both new episodes and the episodes that had aired on Cow and Chicken included in this series, totaling 79 episodes.