4. Ren and Stimpy
Ren and Stimpy was another cartoon which was controversial due to its humor, but this makes it one of them shows you can watch again when your older and actually get some the jokes you missed as a kid. Ren was an asthmatic chihuahua who had a temper and Stimpy was the happy go lucky cat. Due to Ren's violent temper, Stimpy would often be on the receiving end of these outbursts. Due to the show's satirical nature, it is often credited as leading the ways for other shows such as Beavis and Butthead and South Park.