Continuity mistake: Kev hands a beer with lots of foam at the top to a customer at the alibi, then the shot cuts to the beer having no foam, then back to the beer having foam again.
Familia Supra Gallegorious Omnia! - S6-E12
Continuity mistake: Frank's bruise on his left eye (a black eye) grows larger when he tries to get the man on the forklift's attention. Earlier in the episode the bruise is smaller. Later in the episode the bruise returns to the same size it was before.
I Only Miss Her When I'm Breathing - S6-E1
Continuity mistake: The amount of eggs on Carl's plate changes when he leaves. It changes again when Kevin picks up the plate.
Familia Supra Gallegorious Omnia! - S6-E12
Continuity mistake: The baby has feces on its backside which the doctor talks to Deb about. It disappears during the scene and never reappears. No diaper was changed.
Be a Good Boy. Come for Grandma - S6-E8
Continuity mistake: The sign on the door "Carl's Crib" gets bumped and is off kilter near the beginning of the episode. When Carl's friend shows up, the sign rights itself.