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)
The Ring with the Red Velvet Ropes - S3-E6
Revealing mistake: The dead corpse of the defeated boxing champion is breathing.
Continuity mistake: Dr. Strang and Sheila's hair are blown different directions depending on the camera angle.
Continuity mistake: The background of the bedroom keeps changing behind Andrew the butler. Some shots there is a wall lamp behind him, others window blinds.
Continuity mistake: An open tool box on the boat's deck changes position as Raphael and Sheila attempt repairs to the boat's engine.
Continuity mistake: The amount of debris floating in the water behind the barge fluctuates from shot to shot.
Visible crew/equipment: When the chauffeur opens the limo door, the camera and film crew are reflected in the window. (00:03:10)
Factual error: While Edgar Allan Poe is penning his famous poem, a close-up of the paper shows us that he's misspelled his own middle name as "Allen." (00:00:50)
Audio problem: In the woods, we hear the continuing sound effect of howling wind. But not a leaf is moving on the trees, and Irene and Charlie's clothes and hair aren't even ruffled. (00:23:00)
She'll Be Company for You - S3-E11
Continuity mistake: Henry smashes a wooden rolling pin on the kitchen table, leaving splinters all over it. He then crosses to the cupboards, finds a knife and returns, at which point all the broken pieces of the rolling pin have disappeared. (00:21:15)
Continuity mistake: Millicent pours hot water into her teacup and dips a tea bag into it. She doesn't drink a drop, but next shot, when she puts the cup down, we can see that it's empty. (00:18:30)
The Ring with the Red Velvet Ropes - S3-E6
Continuity mistake: At the end, the former champion's body ages and turns ashen gray. When the shot cuts, though, he's still a perfectly healthy-looking shade of pink. (00:24:45)
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)
Factual error: Ellis trots up the stairs with his wife's dinner, shaking and bouncing the tray all the way. But when he arrives, the liquid in the tray's very full glass of milk hasn't spilled a single drop. (00:14:30)
Since Aunt Ada Came to Stay - S2-E9
Continuity mistake: When she leaves the campus, Joanna gets wet running through the rain to her car. Just minutes later, she arrives home completely dry and with her hair neatly coiffed again. (00:27:10)
The Messiah on Mott Street - S2-E38
Plot hole: No one in Goldman's house finds it at all strange that a mailman arrives at the door with a letter after midnight on Christmas Eve. Nor, a short time later, does the doctor or anyone else passing by at this very odd hour wonder why the same mailman is collecting mail from a street box at dawn on Christmas Day.
The Tune in Dan's Cafe - S2-E45
Continuity mistake: When Roy is talking to Dan through the window while a hamburger is frying, the camera angle switches and there are suddenly 2 uncooked patties on the griddle.
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)
I'll Never Leave You - Ever - S2-E56
Continuity mistake: Several times during this episode, reversed shots cause Moira's wedding ring to switch from her left to her right hand and back again.
Factual error: Gingold's Camera Obscura shows us a cross-fade. That's a special effect the Victorian device wasn't capable of performing. (00:06:45)