Good Night is the first Simpsonsshort and pilot episode and the first televised appearance of the Simpson family. It originally aired on The Tracey Ullman Show on April 19, 1987. This short was also used before the couch gag in the episode "Looking for Mr. Goodbart" to celebrate 30 years of the Simpsons' televised debut, but only showed the scene with Marge singing "Rock-a-bye baby" to Maggie.
First, Homer says good night to Bart who is frightened about the human mind when Dad leaves. Then, Marge says good night to Lisa who is afraid that bedbugs will get her once she leaves. After that, Marge says good night to Maggie who is scared of the lyrics to "Rock-a-bye baby". Once Marge leaves to go to bed, she and Homer start to go to sleep themselves. Just as they begin to doze off, the kids all come running to their parents' bed after being scared from what they were told. Marge is reluctant to let their three children sleep in their bedroom for tonight, once settled in Homer tells the kids to go to sleep once the lights are turned off, everyone falls asleep quickly before Maggie quietly says "Goodnight" before closing her eyes to go to sleep.