The Cemetery - S1-E1
Continuity mistake: From the inside view of the window the Hendricks gravestone and the family name is visible on it. From the outside view of the window the gravestone and the Hendricks are facing away from the window.
The Cemetery - S1-E1
Continuity mistake: After Jeremy wheels Mr. Hendricks to the window, Hendricks' right arm moves up to his face. The next shot Hendricks' arm moves up again to his shoulder.
Continuity mistake: When the derelicts discover the medical bag in the alley, a blue sedan parked in the background disappears and reappears repeatedly throughout the scene. (00:06:30)
Visible crew/equipment: When the Chrysler 300 convertible pulls up in front of the haunted house, the camera crew and several light panels are reflected in the car's door and side. (00:03:00)
Continuity mistake: After she leaves the sanitarium, Elaine's long blonde hair is blowing wildly in the wind as she drives. In the next shot, with no time for her to have combed it, her hair is neatly coiffed again. (00:10:00)
Clean Kills and Other Trophies - S1-E12
Visible crew/equipment: The boom mic's shadow is visible on the back wall as Archie Dittman. Jr. descends the staircase.
Continuity mistake: When the ship's captain is questioning the survivor, the man is sitting up with the iron bedstead behind him. When the shot cuts, he's suddenly lying flat with his head on the pillow.
They're Tearing Down Tim Riley's Bar - S1-E17
Continuity mistake: When William Windom comes into his office, we see a stone wall in the background, with a wall clock, a painting and a credenza, but when Bert Convy comes in through the same door later, the background is completely different. And again, when William Windom leaves his office after he's been fired, the background has changed again. (00:03:30 - 00:07:10)
They're Tearing Down Tim Riley's Bar - S1-E17
Continuity mistake: When Randolph Lane swivels in his chair, his hair changes from slightly mussed to disheveled.