The Ren & Stimpy Show, often simply referred to as Ren & Stimpy, is an American animated television series, created by Canadian animator John Kricfalusi. The show premiered on August 11, 1991 on Nickelodeon as part of its Nicktoons block along with Rugrats and Doug. The series focuses on the titular characters: Ren, a psychotic chihuahua, and Stimpson J. Cat, a good-natured, dimwitted cat. The show ran for five seasons on the network. The show was rated TV-Y7 on Nickelodeon/Nicktoons, and TV-PG on the Spike TV repeats. Throughout its run, The Ren & Stimpy Show was controversial for its off-color humor, sexual innuendo, and violence, each of which contributed to the production staff's altercations with Nickelodeon's Standards and Practices department.