Scenes aboard the tyllium refinery ship were actually filmed at a sugar mill. The tillium shown in the episode - including what's in the vast blimp-hangar-like room that's nearly empty, and the stuff dumped onto the conveyor belt - is actually raw, coarse, unrefined sugar.
James Callis, who normally speaks in his own native accent, adopted an accent similar to a Yorkshire accent for Baltar's "native Aerilon."
Human Survival Count: 41,400.