Conan O'Brien recently reunited with some of the other writers of The Simpsons who he worked with during his tenure on the show. The panel touches on "... how Jub-Jub became the name of Selma's iguana, how Tracy Ullman always hated the cartoon, and how Conan was the only person in the show's history to have three episode ideas accepted in one story idea day."
The story that lead to the creation of The Critic is an interesting one, starting as an idea for a behind-the-scenes show with a focus on the make-up lady for a morning talk show, which transitioned into the animated series that ran for two seasons on two different channels, plus 10 online shorts (on the blue, previously). If this is all news to you, you can peruze an old fansite and, or watch all 23 episodes online, plus the webisodes in two sets. Bonus: the Simpsons/Critic crossover, which did not amuse Matt Groening.