 In episode 119, "Kid Gloves", we see Cory scuba diving in the school  pool from his point of view, and then come up to the surface to see  Mr. Feeny looking down on him. This mimicks a scene in  _Graduate, The (1967)_ (qv) in which Dustin Hoffman (qv)s  character comes up from scuba diving to see his father looking down  on him who, like Mr. Feeny, is also played by  William Daniels (I) (qv).