As ' Some Enchanted Evening' was being overhauled, the producers decided to air the Christmas special, ' Simpsons Roasting on an Open Fire', on December 17, 1989. Subsequent episodes such as ' Bart the Genius' had minor problems in production that were easy to fix and were suitable for airing. Seventy percent of its animation had to be redone, delaying it for months throughout the season until it finally being aired as the season finale on May 13, 1990. However, the work print of the episode was of poor quality and was declined to be used. The original plan was to begin the season and the series in the Autumn of 1989 with ' Some Enchanted Evening'. Brooks, and Sam Simon were the show runners of the season. It premiered on Decemwith ' Simpsons Roasting on an Open Fire', and ended on with “ Some Enchanted Evening”.
The first season is the start of The Simpsons universe.
