Major plot points: introduction of Ms. Parker's mother and her "suicide".
Introduction of Mr. Broots a character that will feature in almost very episode after this one but won't get a starring credit till season 4.
Jarod discovers: imitation canine feces, Oreos and how to eat them.
Pretends: Mr. Spitz atomic engineer, Lieutenant Campbell of the Coast Guard, race car driver.
The simulation Jarod watches is dated 4/13/70. The story suggests that he saved Apollo 13 by giving the solution that was actually used. However, this seems highly unlikely, since the free-return trajectory solution Jarod comes up with was standard operating procedure for all lunar-crafts. Apollo 8, 11, and 12 all flew on this trajectory from the very start to ensure a safe return if a landing was canceled. The problem with Apollo 13 was that because of the intended landing site a free return trajectory was impossible and so it needed a course-correcting burn to put it on track again, so that it could safely return to earth.