The Simpsons is a classic show. Love some of the humour, flinch at some of the barbs. What other show has characters such as Ned Flanders and Rev Lovejoy?
Phil Baker has a discussion on it at his blog.

We dont let my four year old watch it at this stage. The other day we were both busy and it came on. I noticed and said to him, turn that off please! His reply was, but daddy its a Christian show! I said, no its not, what do you mean? He replied, “the daddy said ‘o my God'”. Melinda and I looked at each other, great! What sort of parents are we?!? It was a good opportunity to talk with him about what it meant in that context.
None the less I often use stories from the Simpsons in my messages. From how it portrays Christians, to how dads and mums interact, to the fear we observe in Homer’s dad.
I dont really know what the writers think of Christianity, or even if I could reccomend it to someone else. But I do know it is a smart and insightful window onto our cultures soul.