 " Burns ' Heir " was written by <unk> Richdale , his only writing credit . David Silverman was originally going to direct the episode , but he was so swamped with his work as supervising director that it was reassigned to Mark Kirkland . While the Simpsons are at a movie , there is a parody of the THX sound Deep Note . The THX executives liked the parody so much that the scene was made into an actual THX movie trailer , with the scene being redone for the widescreen aspect ratio . A deleted scene from the episode sees Mr. Burns release a " Robotic Richard Simmons " as a way of getting rid of Homer . The scene was cut , but later included in the season seven clip show " The Simpsons <unk> Episode <unk> " . 
