This is by far my favourite Family Guy moment. It gets me every time. What's yours?
Brian: Ah, don't feel bad Peter. Hey, I know what'll cheer you up.
Peter: Nah, I don't think I'm in the mood.
Brian: Are you sure?
[Comes out in a banana suit and baraccas]
Brian: It's peanut butter jelly time! Peanut butter jelly time! Peanut butter jelly time! Where y'at? Where y'at? Where y'at? Where y'at? D'there you go. There you go! There you go! There you go! Peanut butter jelly! Peanut butter jelly! Peanut butter jelly! Peanut butter jelly! Peanut butter jelly!
Peter: Sorry Brian. It's just not doin' it today.
Brian: Do the peanut butter jelly, peanut butter jelly, peanut butter jelly with a baseball bat. Peanut butter jelly, peanut butter jelly, peanut butter jelly with a baseball bat.
The Original
It was no coincidence that Brian came dancing in a banana suit. The Family Guy gag is based on a popular viral video that was made famous on the internet in the early 2000s, then later revived on in 2005. Song is by Buckwheat Boyz. Check it out.

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