Incredible Hulk: 747

"747" is the seventh episode of season one of the sci-fi/superhero television series The Incredible Hulk, which aired for five seasons from 1978 to 1982. The episode was directed by Kenneth Gilbert and written by Karen Harris and Jill Sherman. It first aired on CBS on Friday, April 7th, 1978. In this episode, David Banner takes up a job at a zoo so that he can get close to a scientist who may hold the key towards controlling his anger issues. Doing so however, drops him in the middle of a conspiracy between several of the zoo's administrators. Plus, the Hulk fights a gorilla!