This falls under the category of "not enough numbers to attempt interpretation." It just is what it is.
SciFi run *:
Serenity, part 1 (07-22-05) - 1.6 million households
Serenity, part 2 (07-29-05) - 1.5 million households
The Train Job (08-05-05) - 1.4 million households
Original run **:
The Train Job (09-20-02) - 4.3 million households
Serenity (12-20-02) - 2.9 million households
* all ratings information from the SciFi rebroadcast run found at GateWorld.
** all ratings information from the original run of Firefly found at Matthew Wahoske's excellent resource, Nielsen Ratings for Firefly's First Season.
