The premiere of the CW's "90210" -- arguably the most crucial series of the fall season -- became the highest-rated scripted debut in the network's two-year history.
Tuesday night's two-hour premiere was seen by 4.9 million viewers and garnered a 2.6 rating among adults 18-40. That surpasses the CW's previous scripted record in the adult demo by 18%, set by a premiere of the long-running cult favorite "Smallville" (2.2). The "90210" number also ties the network's premiere record once reached by reality hit "America’s Next Top Model."
http://www.thrfeed.com/2008/09/90210-is-cws-hi.html
And 90210 had better rating then gossip girl