According to TVByTheNumbers.com, 5.79 million viewers watched “The CBS Fall Preview” last night, with a 1.4/4 rating in the adults 18-49 demographic. That’s up from the 3.53 million viewers and a 0.9/2 A18-49 demographic for last year’s preview, but down from the 5.830 viewers and a 1.7/5 A18-49 rating in 2011.