Continuity mistake: Season 3, "The Little Carousel": In the land mine scene, Anderson's helmet disappears and reappears repeatedly between takes.
Visible crew/equipment: Season 3, "A Rare Vintage": In the scene inside the winery, a cameraman's shadow intrudes at the left of the shot.
Revealing mistake: Season 3, "The Imposter": During the march, Rick Jason slips and says, "Peabody! Bring up the rear!" He was supposed to say "Littlejohn." Peabody is the actor's real name.
Continuity mistake: Season 3, "The Long Walk": Near the end, the wine bottle Saunders is holding switches hands between shots, then vanishes.
Continuity mistake: Mark Richman's character has an empty holster after the crash, but moments later there is a .45 caliber weapon there.
Continuity mistake: Re-used footage causes three characters who were earlier captured by the Germans to be seen, in one shot, marching in Saunders' squadron.
Factual error: The German radio-wave detection vehicle is a very poorly disguised American ambulance.
Continuity mistake: Saunders loses his helmet getting into the truck, but is wearing it again in the next shot.
Bridgehead - S2-E2
Continuity mistake: Billy's father, previously established as dead, sends his son a letter in this episode.
Continuity mistake: Episodes weren't broadcast in production order, so the character of Billy dies in this one, but reappears alive and well in several episodes aired after this.
Continuity mistake: Saunders' bayonet disappears from the tip of his rifle several times between close-ups and long shots.
Continuity mistake: When he's carrying the stretcher, Saunders' gun instantly switches from slung over his left shoulder to slung over his right.
Continuity mistake: Sal Mineo and Tom Skerritt's characters are fighting in a dark room that is suddenly brightly lit after the commercial break, even though their fight is continuous and no one else is there to turn on any lights.
Continuity mistake: When he beds down for the night, Saunders removes his coat and covers the little dog with it. But he's wearing the coat again when he wakes up.
Continuity mistake: Season 4, "Hills Are For Heroes, Pt. 1": When he enters the bunker, Hanley's backpack disappears between shots.
Continuity mistake: The demolition expert is shot and falls dead several feet from Hanley's position. Next shot, his body is now right beside Hanley.