Deliberate "mistake": When Jill turns off the light to Randy's room, she uses the same switch that Al used to activate the reverse laundry chute.

Visible crew/equipment: At the beginning episode 5.9, "Chicago Hope", the camera and several studio lights reflect on the glass door behind Tim as he sits at the dining room table.

Revealing: At the beginning during the Binford commercial, Tim falls off the ladder that they just set up and it's possible to see it's connected to the wall (so it will flip, but not fall over).

Factual error: Tim accidentally fires an M2 .50 machine gun while on a tank. Ricochets are shown sparking all over other tanks while people dive for cover. A) Bullets don't spark when they ricochet, and B) the M2 had a blank firing adapter installed; it couldn't have been firing bullets. Submitted by Grumpy Scot

Continuity: When Tim and Jill are out to dinner and Tim spots Mr. Leonard, he gets up and lays his napkin down flat on the table. When he returns to the table the napkin is bunched up in a ball. Submitted by Ian Mugford