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: 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)
Continuity mistake: Emily is sitting at the table with a beer before Norm brings her one. (00:07:10 - 00:08:00)
Visible crew/equipment: In the first shot after the opening credits a boom mic is visible. (00:02:40)
Visible crew/equipment: Right after Sam does his trick with the match, a boom mic is visible. (00:02:50)
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)
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.
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 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: 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)
How Do I Love Thee, Let Me Call You Back - S2-E10
Visible crew/equipment: The shadow of a boom mic can be seen at the top of the screen when Sam comes out of the office to see who is coming with him to the fight. (00:09:10)
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.
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)
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.