Visible crew/equipment: When the prisoners are looking for the dirt from the tunnel they discover it is in the attic. While they are removing a board from the ceiling they reveal an overhead stage light. You can tell this is a mistake because they hurriedly put the board back.
Combat! (1962)
1 visible crew/equipment mistake in Dateline - chronological order
Starring: Vic Morrow, Jack Hogan, Pierre Jalbert, Rick Jason
Audio problem: Season 3, Episode 68, "The Duel". Sometimes the tank's co-axial machine gun is firing, but no gunfire sound is heard.
Braddock: Don't just stand there sucking on a prune pit, get these men some water.
Mountain Man - S3-E1
Trivia: Pierre Jalbert (Caje) was actually an accomplished professional skier before his role in Combat. All of the sking scenes with Caje was actually Pierre Jalbert doing the skiing.