Continuity mistake: After Diane's 'Romance is in the air' Sam comes closer to her and stands right behind her. Then there is a cut and suddenly Sam is standing to her right, shoulder to shoulder - it's a different angle, but the distance is too great. (00:03:30)
Old Flames - S2-E7
Continuity mistake: In the opening scene when Norm is talking and he says "we caught a little movie this afternoon," he starts to take a drink from his beer, the shot cuts to behind him and he is still drinking. Then the shot changes - his mug is sitting in front of him, and he starts to take a drink. (00:00:40)
Old Flames - S2-E7
Continuity mistake: After Dave walks into the bar the amount of beer in Norm's mug changes a couple of times.
Old Flames - S2-E7
Continuity mistake: When Diane walks in and asks where Sam is, there is a box on the bar. When she walks up to the bar the box has changed, then later changes back.
Continuity mistake: When Sam and Diane are talking about what they are going to have for dinner Sam opens a bottle of wine. The shot changes, the wine bottle has disappeared, and Sam is holding a couple of glasses. (00:14:15)
Continuity mistake: Diane is looking at the picture Carla gave her. The shot changes and Diane is now looking straight ahead as she gives Carla the picture. (00:08:25)
Continuity mistake: When Carla is saying what happened at the wedding, Norm is about to take a drink - the shot changes and he is already drinking. (00:14:25)
Continuity mistake: When Carla says "This will be great - Nick's a bleeder" they are standing next to each other without touching. The shot changes and they each have one arm around the other.
Continuity mistake: When Coach walks out from behind the bar near the start, he's got feathers almost up to his knees. Then when he turns around to walk back, they're now only over his feet. (00:03:55)
Continuity mistake: Emily is sitting at the table with a beer before Norm brings her one. (00:07:10 - 00:08:00)
Rebound (1) - S3-E1
Continuity mistake: When confronting coach about Diane coming to the bar, Ted Danson's wedding ring is visible on Sam's left hand. Later in the scene it disappears. (00:15:17 - 00:16:00)
Rebound (1) - S3-E1
Continuity mistake: When everyone is talking to Sam about his drinking, there is a empty beer mug in front of Norm when he says "Maybe you are drinking more than you should." The shot changes and his mug is now about half full.
Sam Turns the Other Cheek - S3-E5
Continuity mistake: The gun that Marvin puts on the table changes position a couple of times.
Continuity mistake: When Diane picks up Carla and puts her on the bar stool, Carla puts her hand in her lap. The shot changes and her hands are now on the bar.
Continuity mistake: When Frasier and Diane are telling Sam they are moving in together, there is a napkin in front of Frasier that suddenly moves when Sam says "Really that was one of my highlights."
The Heart is a Lonely Snipe Hunter - S3-E14
Continuity mistake: When the guys get back from snipe hunting Norm puts his hat on the bar. The hat changes position a few times throughout the scene.
The Heart is a Lonely Snipe Hunter - S3-E14
Continuity mistake: When the guys are getting ready to leave for fishing and Diane is trying to get them to take Frasier, there is a carton of half and half on the bar. At one point Diane is seen taking it and holding it, but a couple of shots later the carton is now back where it was.
The Mail Goes to Jail - S3-E17
Continuity mistake: The first time Sam leans down when Diane is stuck in the vent, in the closeup shots of Diane, Sam's glove is missing from his hand on the floor.
Behind Every Great Man - S3-E19
Continuity mistake: When Paula first comes into the bar the amount of beer in Norm's mug keeps changing.
Continuity mistake: When Frasier and Sam are talking in Sam's office, Sam sits down in his chair and leans back, the shot changes and he leans back again. (00:07:15)
Answer: They sometimes acquire episodes from syndicated reruns. The ones with the cut scenes. Sundance channel have some episodes of M.A.S.H. uncut.