American Idol fell 10% last night from its premiere a week ago, garnering a 5.4 rating in the 18-49-year old demographic.
Elsewhere, CSI rose a season best, while Arrow and Supernatural remained steady for The CW...
American Idol: 16 million viewers
Criminal Minds rerun: 6.7 million
Arrow: 3.1 million
The Middle: 8.5 million/The Neighbors: 6.3 million
Whitney rerun: 2.6 million/Guys with Kids rerun: 2.2 million
CSI: 11.5 million
Nashville: 5.4 million
Chicago Fire rerun: 2.5 million