You will watch The Simpsons Season 14 Episode 3 – Bart vs. Lisa vs. The Third Grade online for free episodes with high quality. Online episode guide, The Simpsons Season 14 Episode 3 – Bart vs. Lisa vs. The Third Grade.The Simpsons buy a satellite television, which Bart spends so much time watching that he does not study for an important achievement test. He scores so low that Principal Skinner demotes him to third grade, while Lisa does so well that she is moved up to third grade.