"I Am Weasel" was originally a series of segments in its sister series "Cow and Chicken", usually being aired as the third of three segments in a "Cow and Chicken" episode. The series started on July 15, 1997 and its first four seasons premiered in that format. In 1999, "I Am Weasel" was separated and got its own half-hour show, premiering as an independent series on June 10, 1999. All of the 52 episodes of "I Am Weasel" that originally aired on "Cow and Chicken" began to air in the new independent show, and were later joined by a fifth season with 27 new episodes, for a total of 79 episodes. The series ended in 2000.