Saturdays of Thunder
In this episode, Homer takes a fatherhood quiz and realizes that he knows nothing about Bart. He tries to be a better father and learns that Bart is entering in a "Soap Box Derby." Homer and Bart make a racer together, however it is not very good, and Bart decides to drive Martin's much nicer racer instead. Homer is at first sad, but decides that he must be a good father and support Bart.