At about 6 minutes 30 seconds George Michael (Michael Cera) can be seen walking in front of a red dog house with a beagle sleeping on the top of it. This is an obvious reference to the Peanuts character Snoopy who is a beagle that spends a great deal of time on top of his red dog house. The "sad" version of the song "Christmas Time Is Here" from A Charlie Brown Christmas (1965) plays whenever anyone in this episode does the "sad walk". The first time this leitmotif makes an appearance, we see the beagle on the doghouse. Other references to Peanuts in this episode include a sign on the banana stand which reads "The frozen banana maker is currently 'IN'" (a play on the sign hung on Lucy's psychiatric help stand), the music which plays as various characters sulk dejectedly after being humiliated or rejected, and of course the title of the episode itself.
ICE (Malik Yoba) tells the family that George Sr. (Jeffrey Tambor) 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 moustache and beard.
The picture of Ben Stiller as Tony Wonder was added last minute before airing, just after the producers landed him to appear in episode 2.15, Sword of Destiny (2005).
In the storage closet that Michael (Jason Bateman) is working in, next to paper and office related products, there is also a CornBaller, the dangerous kitchen device George Sr. (Jeffrey Tambor) used to sell, on one of the shelves.
George Michael (Michael Cera) telling George Sr. (Jeffrey Tambor) that Ann (Mae Whitman) is funny is a reference to a comment Gob (Will Arnett) made about her in the previous episode: "What, is she funny or something?".