Here are things that make my head hurt:
The Swan and Pearl Orientation videos are both dated 1980.
Man refers to himself as "Dr. Marvin Candle" for the Swan video then as "Mark Wickman" in the Pearl video. Willl he show up in a later video as "Michael Flame, Esq?"
In Swan video his left arm does not move.
After 8 hour shifts, Pearl observers they are to report to the "Ferry." This implies that boats are able to go on and off the island.