The DVD/The Responsible - S1-E1
Continuity mistake: When they smash the TV something on top falls off. When the camera points back from the little sister, it's gone.

Starring: Dan Russell, Kwesi Boakye, Logan Grove, Teresa Gallagher
The DVD/The Responsible - S1-E1
Continuity mistake: When they smash the TV something on top falls off. When the camera points back from the little sister, it's gone.
The Authority/The Virus - S2-E10
Revealing mistake: In "The Authority," when the Wattersons return to normal and start screaming "The brake!", Darwin's animation repeats itself in the same frame. Thanks to the slow motion the scene is going in, this error is easy to spot.
[The kids are trying to get Granny Jojo out their bedroom window to have her reach the ground.]
Gumball: [grunting] How can someone so small be so heavy?
Granny Jojo: Well, I have two metal hips, one orthopedic shoe, six gold teeth, a plate in my head, and an industrial strength pacemaker. I got so much metal in me, I'm legally classified as a motor vehicle.