Without knowing more about the show, I will offer that some Christian denominations emphasize liturgy and have a prayer for just about everything. For example, here are a few from the Episcopal church: "A Prayer for Those Suffering from Depression. For Our Country. For Social Justice. For Quiet Confidence. For the Departed. On the Anniversary of the Dedication of a Church. For Commerce and Industry." And this is without mentioning the prayers specified for every Sunday of the year, for special feast days and saints' days, and on and on. These are prayers meant to be read as written, not extemporaneous prayers such as other Protestant denominations might offer on such occasions.
However, I'm pretty sure there's not a prayer for the dismemberment of a body. So, it's a joke. :)