 " Simpson and Delilah " is the second episode of The Simpsons ' second season . It originally aired on the Fox network in the United States on October 18 , 1990 . Homer uses the Springfield Nuclear Power Plant medical insurance plan to buy ' Dimoxinil ' , a miracle hair growth formula . Homer grows hair , and is given a promotion , but he is also embarrassed when he is asked to model for a new ad . Marge becomes jealous of the attention Homer receives and decides to buy her own hair growth formula . She grows a beard , and Homer becomes jealous of the attention she receives . The episode was written by