On April 19, 1987, The Simpsons premiered as a short cartoon on The Tracey Ulman Show on HBO. Over the years, the cast from Springfield has undergone a handful of artistic changes through the hands of creator Matt Groeining, and become the longest-running American sitcom on telivision. Hit the thumbs for an original look at our favorite cartoon family, as well as their contemporary character designs in 2012. Viva La Simpsons.