WWE Smackdown rating for 09/20/2016 By Colin Vassallo - 09/21/2016 FacebookXPinterestWhatsApp Smackdown suffered a big drop in the ratings this week, getting 2,292,000 viewers for the broadcast, down 366,000 viewers from last week. This is the lowest number since the July 14 episode. (Ratings credit: Showbuzzdaily.com)