The Living Legend (2) - S1-E13
Revealing mistake: The shots of the exploding containers in the very modern looking Gamoray are a reuse of shots from the episode "The Young Lords", evidenced by the obvious castle in the background. (00:17:50)
The Living Legend (2) - S1-E13
Revealing mistake: When Pegasus goes after Baltar's base star, Pegasus takes damage to her starboard landing bay. The shot is reversed and a reuse of the same shot from the previous episode when Galactica took identical damage to her port bay. (00:32:30)
The Living Legend (2) - S1-E13
Revealing mistake: When Pegasus evacuates her wounded on shuttles, one shot has a shuttle entering the picture from the right, heading away from camera. It is a Galactica shuttle, and the image is reversed (the "GAL 356" marking is backwards). (00:42:30)
The Living Legend (2) - S1-E13
Revealing mistake: As Pegasus approaches the two forward base stars, she is shown from the rear of her port side, moving away from camera. The shot is a reversed image of Galactica (her name is backwards on the landing bay). After the vipers clear a path for her, the same shot is flipped again, so that Galactica reads properly, despite the shot purportedly being of Pegasus. (00:43:55 - 00:45:05)
Revealing mistake: One of the fire crew presses several controls on a panel operating the ship's pumping mechanism. When his gloved hand is shown pressing the first button, the supposedly metal panel flexes and buckles slightly. (00:23:50)
Revealing mistake: When Apollo and Starbuck are space walking outside of Galactica, the ropes holding them up can be seen. (00:34:05)
The Man with Nine Lives - S1-E17
Revealing mistake: When one of the Nomen throws his "boles" at a support column, it is obvious in the side shot that the actor never really lets them go, but just turns his hand to block sight of them as his hand drops. The glow can be seen traveling downward, despite the next shot showing the lighted weapon traveling forward. (00:11:30)
Greetings from Earth (2) - S1-E20
Revealing mistake: Just before Commandant Leiter is told that all three ships have landed on Paradeen, a shot of the Eastern Alliance ship shows very visible guide wires holding up the model. (00:13:40)
Greetings from Earth (2) - S1-E20
Revealing mistake: The "hovercraft" Starbuck arrives in with Hector is bouncing over the terrain, very obviously riding on wheels and not air. (00:20:15)
Revealing mistake: When Starbuck veers off the shot of his thumb and the flight stick is reversed. The "IM" button is on the left and the red "FIRE" button is on the right, opposite from where they normally are. Sharp eyes can even see the word "TURBO" is reversed before Starbuck's thumb covers it. (00:03:18)
Revealing mistake: When Apollo changes course, he pulls back on the joystick and the interior shot shows the shuttle seems to raise its nose. But the stars outside the window also tilt, meaning the shuttle hasn't tilted - the camera has. (00:34:25)