and the trivia bit on www.tv.com says that "It's very ironic that Bart would make that "Church, cult, cult, church" comment, since he's voiced by a member of the Church of Scientology (Nancy Cartwright)."
that episode has some really good quotes:
"Rev. Lovejoy: This new so-called religion is nothing but a pack of weird rituals and chants designed to take away the money of fools. Now lets say the Lord's prayer 40 times, but first lets pass the collection plate."
"Lisa: It's great that we can all think for ourselves again.
Announcer on TV: You are watching FOX.
Family (robotically): We are watching FOX"