The episode contains two scenes with a hospital patient named Jimmy (played by Joseph O'Toole) who suffers from aphasia, which is a real condition where patients can't comprehend spoken language. Jimmy can detect if someone lies based upon physical behaviour, and finds it amusing when someone lies and laughs. Both scenes contain real footage to showcase that ability, both feature former US presidents. The first is George W. Bush, the clip used is when he states that Saddam Hussein possesses Uranium and therefore it justifies the invasion of Irak. The second clip features Bill Clinton and is shown without sound (as it's part of a montage), but he clearly says "I did not have sexual relations with that woman", referring to Monica Lewinsky. In both scenes, Jimmy laughs, indicating that he believes both of them lied.
At 42:41 minutes into the episode, Jimmy, who is an aphasiac, is watching Present Bill Clinton recording of denying having sexual relations with Monica Lewinsky. He laughed as Bill was lying. That very same video footage was used in season 1 episode 4 of Lie To Me, were Bills hand gesture and eye location are not in sync, which is another signature of lying.