One of the few episodes where Peggy is not wearing stockings in bed.
This episode was taped on March 23, 1990.
When Al is in the shoe store thinking to himself, his mother's voice says, "don't worry Al, just think of it as a stepping stone, some day you'll be the President of your own corporation". In his other show (debuting 19 years later after this episode), Modern Family, Ed O'Neill's character is owner of Pritchett's Closets & Blinds. And is living wealthy.