Continuity mistake: Preston takes a cigarette to his mouth, but in the close-up, it vanishes. Seconds later, he picks up a cigarette again.
Audio problem: Throughout the episode, the footsteps on the rug-covered floors sound as if they were on hardwood. (Spanish dubbing).
Jack & Bill - S6-E5
Revealing mistake: When the episode ends and Bill leans down for the dog to lick him, a shiny light-brown spot is visible on the actor's jaw - seemingly a bit of food placed there to prompt the dog's trained reaction.
Jack & Bill - S6-E5
Continuity mistake: The terrorist removes the foil cap from the champagne bottle, but in the close-up, it’s back on.
Jack & Bill - S6-E5
Continuity mistake: When Bill bites his sandwich, it alternates between being bitten and completely whole.
Visible crew/equipment: When Lt. Hanna drives with Jessica, set lights are reflected on his sunglasses.
Visible crew/equipment: Set lights are reflected in nearly every actor's glasses throughout the entire episode.
Visible crew/equipment: A boom microphone operator holding a pole is reflected in the window once the crime has been solved. (00:41:44)
Continuity mistake: While Cissy and Jessica discuss inside the tennis club, a man with a blue shirt walks behind Jessica. From the opposite angle, he's metres behind, entering the place again, though he now exits through the left.
Continuity mistake: At Elliot's office, Carol discusses with Cissy, whose arms swap between crossed or not depending on the shot.
One Good Bid Deserves a Murder - S2-E17
Visible crew/equipment: When Dr. Dunn is in Jessica's room, the boom mic is reflected in the mirror. (00:27:12)
Keep the Home Fries Burning - S2-E14
Continuity mistake: The sheriff shows the doctor the menu and cries, "His picture is all over the place!" Then he lays the menu down. A shot later, he is holding the menu with both hands.
Keep the Home Fries Burning - S2-E14
Continuity mistake: When Andy and Kelso fight, Andy's right hand is either next to Kelso's armpit or his collarbone. (00:20:12)
Keep the Home Fries Burning - S2-E14
Continuity mistake: When the sheriff sits down at the restaurant table, Jessica's hands swap from lying on the table to raised.
Visible crew/equipment: When Harry and Amos analyse the bathroom, the edge of the set wall is visible on the right side of the screen.
Programmed for Murder - S8-E18
Revealing mistake: In the outside shot of the hospital, just before Mort discusses his cough with Doc Hazlet, you can see a sign saying the hospital is located in Ohio, not in Maine. This isn't the only episode where this exact mistake is made.
Funeral at Fifty-Mile - S1-E22
Continuity mistake: Carl arrives at the funeral in his RV and then heads to the house. When he arrives, it's a noticeably different model. The door's moved, the front right window is now segmented, and rails have appeared on the roof.
Continuity mistake: When Jessica limps into Milton's car, she holds onto the door. A shot later, her hand is away, and it's Milton's hand instead holding onto the door.
Continuity mistake: When Jessica (a stunt double) is knocked down, her left arm is under her body with her bag in front. An instant cut later (now Angela Lansbury), her arm and bag are behind her back.
Continuity mistake: When Milton picks up Jessica at the airport, her bag is hanging over her right shoulder. A shot later, she is holding it with her left hand.
Answer: Because during Season 6, Lansbury wanted a lighter workload and to do other projects. So they had her just introduce and sum up the episode.
Rob245