Beetlejuice - Season 4 Episode 62 King BJ
Overview: Beetlejuice and Lydia go to visit Merlin and discover that the great magician is plotting to overthrow the King. But when BJ pulls the Board from the Bone, he becomes the new King, and Merlin summons the dreaded B.O. Wolf to wipe him out. It's a middle-age crisis for BJ.