Continuity mistake: In the scene where the Sliders are walking along pushing the dead car and are intercepted by the army, watch John Rhys-Davies' hand placement. As he confronts the troops, the scene goes from him placing his hands in his coat pockets to a back shot of him clasping them behind his back. As the conversation continues, it cuts to a front shot where his hands are, once again, in his coat pockets. Every time the camera shifts from front to back, his hand placement changes with it.
Continuity mistake: At the bar when the 3 are watching the game, Max has his hand up against his mouth as he's thinking. When Wade asks what he thinks, the shot changes and his hand is down.
Continuity mistake: Just before the friends slide, the door behind Rembrandt and Arturo alternates between open and closed between shots.
Continuity mistake: When Serena and Rembrandt go sit on the couch, she hadn't grabbed the champagne glass yet, only reaching for it. But in the next shot it's already up to her to lips.
Continuity mistake: After Quinn bumps his head, he touches the wound with his left hand and his watch is turned around so the face looking inward. In the very next shot, from a different angle, he resumes touching his head but the watch has turned around to the standard position.
Chosen answer: Quinn's brother was going to be a recurring character, so "introduced" in this case referred to the actor becoming a semi-regular.
Jean G