You will watch The Simpsons Season 8 Episode 21 – The Old Man and the Lisa online for free episodes with high quality. Online episode guide, The Simpsons Season 8 Episode 21 – The Old Man and the Lisa.Mr. Burns loses his fortune in a bad investment. He is not doing well alone and is committed to the Springfield Retirement Castle. Disgusted by his surroundings, he vows to get his fortune back. He then sees Lisa collecting recyclables and remembers her opposition towards him. He believes that the reason for losing his fortune was that he was surrounded by “yes men” and therefore asks Lisa to help him. Lisa introduces Burns to recycling and by collecting these he soon gets enough money to buy a recycling plant.