The death certificate confirms that Lucille's maiden name is Jenkins.
Lindsay wears the "SLUT" shirt from the season 1 episode "My Mother The Car".
George Michael telling George Sr. that Ann is funny is a reference to a comment Gob made about her in the previous episode: "What, is she funny or something?".
In the storage closet that Michael is working in, next to paper and office related products, there is also a CornBaller, the dangerous kitchen device George Sr. used to sell, on one of the shelves.
ICE tells the family that George Sr. was killed by a guard, showing a picture of this guard. If you freeze-frame (or look fast enough), you see that the guard is Jeffrey Tambor, the actor playing George Sr.(!) and Oscar, with mustache and beard.
When the coffin is being spun around just before it is to be buried, a video camera (or something) appears mounted to the inside of the coffin lid. It is not there in the shots immediately before and after.
Gob:(Holding 'Poof Magazine') Have you seen the new 'Poof'?
Michael: (Closing the door) His name is Gary and we don't want any more lawsuits.
Gob: I meant the magazine. Wait, Gary's gay? Uh-oh, he must have thought I was coming onto him.
Buster: Are you guys planning a party?
Oscar: Yes. It's your father's birthday, which coincidentally is my birthday.
Buster: Because you're twins.
Gob: Gary's gay?
Gob: Uh-oh. He's going to think I was coming on to him.
Gob: (to Gary) You've got a nice mouth.
Gob: I'd kill for that ass.
Gob: (with Gary on his lap) Okay, the chair's not doing it now, but, lately, it's been giving out as soon as I lean back.
George Michael: I have Pop-Pop in the attic.
Michael: What? The mere fact that you call making love "pop pop" tells me you're not ready.
George Michael: It's the girl who ripped my heart out. The girl whose face will always be etched in my mind.
George Sr.: Her?
George Michael: She's really funny.
George Sr.: Well let's hope so.
Lindsay: You know what? I'm going to throw on a skirt, take off my underwear, and make your Pop-pop proud!
Maeby: That's got to bother you, huh Dad? I mean, she's flirting right in front of you.
Tobias: Hmm? Oh, no. I am surprised though that she's going after somebody so similar to my own type. But I suppose we all do expose our inner desires, don't we?
Maeby: I think you just did.
Tobias: No I didn't.
Tobias: (referring to Michael's lack of emotion over George Sr.'s 'death') Here he comes. Here comes John Wayne. "I'm not going to cry about my Pa. I'm going to build an airport... Put my name on it." Why, Michael? So you can fly away from your feelings?
Lucille: (to Oscar, who's standing naked with his robe open) Oscar, close it! You look like the window of a butcher shop.
Narrator: As a child, Buster had a beloved parakeet who, after landing on their housekeeper Rosa's wig, flew away when she took out the trash ... and into a transformer. When Buster found out, he destroyed the family's kitchen -— believing this to be where Rosa lived.
Michael: Well, I just figured that life's too short. You two seem to care about each other, so why throw that away, huh? Huh? Ok.
(Ann walks away)
George Michael: You think we really do?
Michael: A father can tell. Ok? It's as Ann as the nose on plain's face.
Michael: I think George Michael is hiding Ann in the attic.
Lindsay: From who, the Nazis?
This episode was nominated for the 2005 Emmy Award for "Outstanding Single-Camera Picture Editing For A Comedy Series". Also, Jason Bateman was nominated for "Outstanding Lead Actor in a Comedy Series".
Dailies of this episode showed a scene where Buster is desperately searching the house for the card.
Promos for this episode showed that after Gob falls into the hole with the casket and says, "I've made a huge mistake." However, this line is not said in the episode; it is unknown whether it was cut or if FOX added the line just for the promos.
Ben Stiller, who was the magician Gob envied in 'Poof' Magazine, is the second cast member from The Ben Stiller Show, which David Cross ("Tobias") appeared on and wrote for to appear on the show, following Bob Odenkirk, who appeared in "Visiting Ours." Stiller also starred with Jason Bateman in the 2004 comedies, Starsky & Hutch and Dodgeball: A True Underdog Story.
Gob once again does his magic act to Europe's "Final Countdown."
At the end of the scene where George Sr. discovers Lucille and Oscar kissing in the newspaper & is doing the dejected Charlie Brown walk, the letter 'P' followed by 2252 is shown on the Mexican wall behind him. The P stands for Peanuts & the 22 is the year Charles Schultz was born. The 52 is the year Linus was introduced. It is also the code used to unlock George Sr's ankle bracelet later in the series.
Michael: I think George Michael is hiding Ann in the attic. Lindsay: From who, the Nazis?
Anne Frank was a jewish german girl who gained international fame posthumously following the publication of her diary which documents her experiences hiding during the German occupation of the Netherlands in World War II.
Narrator: On the next Arrested Development, Buster finds out about the death of Captain Kangaroo.
Captain Kangaroo was the host of a children's show that ran from 1955 to 1984 on CBS. The Captain died on 01/23/2004.
Tobias: Here he comes. Here comes John Wayne. (imitating Wayne) "I'm not going to cry about my Pa. I'm going to build an airport... Put my name on it."
John Wayne was an American movie actor (The Searchers, Big Jake, etc) primarily known for starring in Westerns and military films. He is considered a archetype of macho. He had a very distinctive drawl and swagger. Also, the airport in Orange County, CA is named "John Wayne Airport," in honor of the late actor.
Charlie Brown Christmas Special reference: During the George Michael/Charlie Brown walk home, you see a father and son walking in the background with a christmas tree. Also, there is a dog sleeping on top of a red dog house, alluding to Snoopy and his dog house.
When George Michael pulls George Sr. out of the hole, the situation and the way that he looks is similar to when U.S. troops pulled Saddam Hussein (a recurring reference on the show) out a "spider hole" at the end of 2003.
n/a: George Bluth
The whole plot with George watching his own wake is similar to Tom and Huck watching their own funeral in "The Adventures of Tom Sawyer" by Mark Twain.
Title: Good Grief
The title is a play on the exclamation made famous by Peanuts' character Charlie Brown and the fact the family is grieving over the "death" of George Sr.
Audio/Visual: Christmas Time is Here
The melancholy song best known from A Charlie Brown Christmas plays as George Micheal walks home after being dumped by Ann. If you watch the scene carefully, you'll notice a red dog house in the background with a dog sleeping on the top ala Snoopy.