Lisa's First Word promotion due to the 1984 Summer Olympics boycott by the Soviet Union, as happened to Krusty. At one point in the episode, Dr. Hibbert refers to Olympic gymnastic medalist Mary Lou Retton. In its original American broadcast, "Lisa's First Word" was watched by 28.6 million viewers, the most-watched episode of the season. It finished thirteenth in the ratings for the week of November 30 to December 6, 1992, with a Nielsen rating of 16.6. The episode was the highest-rated show on Fox that week. It acquired the highest national Nielsen rating of the show since the season two episode "Bart
Apogee kick motor the inclination to around zero degrees, thereby accomplishing the insertion into a geostationary orbit. This process is called an "apogee kick". More generally, firing a rocket engine to place a vehicle into the desired final orbit from a transfer orbit is labelled an "orbital insertion burn," or (for cases where the desired orbit is circular) a "circularization burn." For orbits around bodies other than Earth, it may be referred to as an "apoapsis" burn. The amount of fuel carried on board a satellite directly affects its lifetime, therefore it is desirable to make the apogee kick maneuver as efficient as