The Simpsons Season 22, EP2 Loan-a Lisa

When Grampa gives each member of the family a portion of his savings, Lisa invests in Nelson’s brand-new business venture, but soon realizes that her friend’s instant success might lure him away from the classroom. Worried that his judgment might be clouded, Lisa introduces Nelson to Facebook creator Mark Zuckerberg, only to find out that he too dropped out of school. But when Nelson’s business suddenly takes a sharp turn, Lisa teaches her friend that education is invaluable.