The Blue and the Gray/References

Goofs

 * This episode contradicts the episode Secrets of a Successful Marriage, where Homer revealed to the class Marge has had grey hair since she was a teenager and regularly dyed it. In this episode it appears this was the first time she knew of it.
 * Jessica Simpson could not be a relative to the simpson family because homer's half brother couldn't be her father nor Patty & Selma be the Mothers of Her. But it could be a fake.

Continuity

 * Dr. J. Loren Pryor makes a return.

Trivia

 * Sherri and Terri are apparently two-thirds of conjoined triplets.
 * Maggie and Baby Gerald kiss when they are cupids at the end of the episode. However this part can be considered non canon.
 * This is one of the few times the fact that Bart, Lisa and maggie's lack of a hairline is brought up, greatly distressing the children who wonder what they are and where the 'border' is.
 * It is revealed that Selma has blonde hair and Patty has red hair.
 * This episode revolves around Marge getting grey hair and becoming the target of elderly jokes. Marge's voice actress Julie Kavner was 60 at the time the episode aired.

Cultural References

 * The title is a reference to the song "".
 * When Marge gets to the club, the song of the plays from the . As well as a flying monkey (Mr. Teeny) can be seen in the background.
 * The women Homer thinks of when Marge asks what he thinks when he hears beautiful woman were, , a with blue hair, and Marge with blue hair.
 * Homer explaining he'll try to eat his leg to get freed, before Marge unties him, says it'll take him.