Simpsons castmembers Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith and Hank Azaria will lend their voices to the installment, in which Peter and the rest of the Griffins embark on a road trip and wind up in Springfield. There, they cross paths with Homer, who graciously greets his new “albino” visitors, and the two families become fast friends. Stewie is impressed with Bart and his assortment of pranks, Lisa befriends Meg and tries to figure out exactly what it is that she’s good at, and Marge and Lois put aside their housework in favor of some bonding. Meanwhile, Peter and Homer argue over which beer is better: Pawtucket or Duff.
http://insidetv.ew.c...ssover-episode/
It has the potential to be truly amazing or downright horrible. Sounds pretty interesting.