Writer:	Joel H. Cohen
Director:	Ralph Sosa, Mike B. Anderson
Star:	Yeardley Smith (Lisa Simpson),  Hank Azaria (Apu Nahasapeemapetilon, Moe Szyslak, Chief Wiggum, Comic Book Guy, Lou, and others),  Dan Castellaneta (Homer Simpson, Grampa Simpson, Barney Gumble, Krusty the Clown, Groundskeeper Willie, and others),  Julie Kavner (Marge Simpson, Patty Bouvier, and Selma Bouvier),  Nancy Cartwright (Bart Simpson, Nelson Muntz, Ralph Wiggum, Todd Flanders, and others),  Harry Shearer (Mr. Burns, Ned Flanders, Principal Skinner, Waylon Smithers, Kent Brockman, and others)
Recurring Role:	Pamela Hayden (Milhouse Van Houten, Rod Flanders, Jimbo Jones, and others),  Tress MacNeille (Agnes Skinner, Brandine Del Roy, Dolph and others),  Karl Wiedergott (Additional Voices)
Guest Star:	Lance Armstrong (Himself),  Glenn Close (Mona Simpson)

Blackboard Joke: This punishment is not medieval. (Written in medieval style of calligraphy.)
Couch Gag: This extended version showcases the evolution of Homer Simpson, beginning as a single-cell organism which continuously divides to a more complex organism, first as a jellyfish, then a common fish that nearly escapes the clutches of an octopus that resembles Mr. Burns. Getting out of the ocean, Homer evolves into a prehistoric lizard that extends his tongue to snack on an insect that resembles Lenny. He then evolves into a slightly larger lizard with a scale on his back that sees a Pterodactyl resembling Agnes Skinner flying overhead. Homer then evolves into a rat that gets chased by a Tyrannosaurus resembling Bart, who then gets into a battle with a Triceratops resembling Lisa. Homer hides in a hole just before a large asteroid crashes on Earth, wiping out all dinosaur life. Homer comes out of the hole, passing the bony fossil of T-Rex Bart, before changing into a sloth, then a monkey as he approaches a jungle, becoming more apelike upon swinging through the trees. Leaving the jungle, a brief Ice Age occurs as he evolves from Neanderthal, to caveman, and passes caveman Moe (who gives a brief "Hey" hello) before he de-evolves into a rat. Homer continues evolving, morphing into period clothing with appropriate backgrounds from medieval, Spanish explorer, Pilgrim, English scholar, and finally to modern day Homer Simpson with the nuclear plant in the background as he finally reaches home and walks over Santa's Little Helper sleeping on the doorstep as he enters the house. With the rest of the family sitting on the sofa, Marge asks him "What took you so long?" Homer can only give an exhausted sigh of relief. (edit) This is the third time an episode title is a take of da Vinci's famous Mona Lisa painting. The others are "Moaning Lisa" (Season 1) and "Moe 'N' a Lisa" (Season 18). (edit)

Marge: Homer, look what I found in your mother's things.
(Marge gives Homer a DVD)
Homer: A donut from the future? (edit) Bart: (recording a voice for his stuffed hippo) Bart is awesome.
Stuffed Hippo: Bart is awesome.
Bart: This guy could put Milhouse out of business! (edit) Carl: Yeah, you should always make peace with your loved ones.
Lenny: I think I'll give my ma a call right now. (dials cell phone) Hey Mom, I just wanted you to know that you mean... Yeah, he's here... (looks disappointed, gives phone to Carl)
Carl: Hey, Mrs. L! Those butter cookies you sent, were tasty. And the almond ones, oh! (pause) Aw, I wish I was your son, too. All right, I'm gonna pass you back... Okay, okay, I'll tell him. (closes cell phone) Uh, Moe. Lenny's mom says, she loves you.
(Lenny makes disgusted noise) (edit) Homer: Apu, what do you think happens after you die?
Apu: Manjula will sell this store, dye her hair blonde and marry my cousin Jangelvar.
Manjula: Yes, I will! (edit) Homer: Mom, I can't believe you're here. You keep disappearing and reappearing and it's not funny. You're just like that show Scrubs! (edit)

This episode originally aired Mother's Day 2008, and FOX ran the end credits intact instead of squeezing them for upcoming show promos. (edit) The episode is dedicated to Elsie Castellaneta and Dora K. Warren. (edit) Goof: When Homer tells Bart to fetch "The Defender", he reaches inside the open door to get it. But in the next shot Homer has to kick open the closed door to get inside. (edit) Music From This Episode
"White Rabbit" by Jefferson Airplane (Heard when Marge and Lisa burn Marge's hemp purse to provide a distraction for Homer.)
"Mother and Child Reunion" by Paul Simon (Heard at the end of the episode with the flashbacks of Homer and Mona.) (edit) The topography surrounding 'Springfield Peak' (from which Homer disperses Mona's ashes) is uniquely found in and around SE Utah and Monument Valley Navajo National Park in NE Arizona. It could not geologically occur in Ohio or any other Midwestern state currently held as the mythical location of the show. (edit)

Bart's voice in stuffed hippo: B.O. Baracus!
Bart's insult is a reference to Mr. T's character on The A-Team, B.A. Baracus. (edit) Babe
Homer's line "That'll do, brick. That'll do," is a take on the line "That'll do, pig. That'll do," from the 1995 film Babe. (edit) James Bond
Homer disrupting the launch of Mr. Burns' missile (while background music very similar to the James Bond theme plays) closely mimics Bond's exploits in two movies, Dr. No and You Only Live Twice. (edit) Mr. Burns: I've seen your wife and she's no Mamie Van Doren.
Mamie Van Doren (born Joan Lucille Olander) was a B-Movie "sex-goddess" in the late 1950s and early 60's who was linked to Marilyn Monroe and Jayne Mansfield as one of the 'Three Ms'. (edit) Build-A-Bear Workshop
The "Stuff and Hug" store is a parody of popular Build-a-Bear Workshop retail stores founded in 1997. (edit)