In the first episode featuring David Healy, he is introduced as Kevin Healy. However, in the episode "Everyone Comes to Jackie's," Roseanne says (speaking of Darlene's control over David), "David isn't even his real name - she just made that up!" On another episode, Darlene and David are filling out their college applications in the car, and Darlene points out that David left the space for his middle name blank. He admits that his middle name is Maurice.
In the previous episode Dan kicks David out then punches a hole in the wall in the living room. But towards the end of the episode when Dan and Roseanne leave the kitchen and enter the living room the hole is gone and by this episode there is a picture hanging in that spot.