Revealing: Stock footage of the London's launch from Earth is run in reverse when it lands, supposedly 8 months later, on Cygnus Alpha. What are the odds that a remote penal planet will have a launching pad with configurations, lights, buildings and background terrain all completely identical to the launch stage on Earth?

Continuity: At the end, Blake teleports Vargas, who's wearing a long purple robe, out into space. But the figure we see materializing in space isn't in a robe. It appears to be wearing a spacesuit instead.

Continuity: When Vargas beams up to the Liberator just ahead of Blake, Gan & Vila, he challenges them when they arrive from the other side of the room - by stepping out of the teleport bay. But they're standing in the teleport bay, and Liberator has only one. So exactly where is Vargas standing?

Revealing: The high priest Vargas is wearing a nice new pair of decidedly 20th century basketball shoes under his robe. We even get a good close-up of them at one point.