The scene in which Greg Brady scares Marcia and Ruthie during the slumber. Is a reference to Gilligan's Island Home Sweet Hut, where Gilligan scares the castaways in the cave.
Like The Castaways in Gilligan's Island Home Sweet Hut, Jeff and Sumo fight. But unlike this episode, there's no storm, and Jeff and Sumo don't go in separate huts.