When Lindsey enters their bedroom and catches Tobias watching her Kegel video, Tobias is sitting on the right side of the trunk with the remote on his left side. In the next shot, he is sitting on the left side of the trunk with the remote hidden behind him.
When G.O.B finds the contract that was signed by George Sr. and Saddam Hussein, the "supposed to be written in Arabic" part is actually written in Persian or Farsi; the main language in Iran.
Contrary to popular belief, it is not possible to enlist your children. Though its possible Lucille was just lying to Buster to keep him in line.
When the family leaves the bathroom after walking in on Lindsay, for a split second, we can see someone's reflection in the mirror. This person is wearing a blue shirt with black pants and is sitting down.
When Oscar is at the police station, he can be seen wearing George Sr.'s wedding ring.