Last week’s episode of WWE Smackdown — the final on Friday night — did an average viewing audience of 2,432,000 viewers on SyFy. That number is down (-150,000) from the week prior.
TV by the Numbers has data for the top 100 cable shows among adults 25-54 for all of Friday at this link.
Smackdown Viewership Archive:
January 2, 2015 - 2,582,000 viewers
January 9, 2015 - 2,432,000 viewers