Fox’s American Idol continues its slide, logging a third consecutive week of in-season Wednesday lows. Last night’s two-hour show posted a 3.8/11 among adults 18-49, down 7% from last Wednesday, and 13.1 million viewers, down 8%. Last night’s 3.8 demo rating (which will likely be adjusted up to a 3.9 in the finals), last Wednesday’s 4.1 and the Wednesday before’s 4.3 now rank as the three lowest in-season Wednesday results for Idol. Overall, it was Idol‘s worst Wednesday performance since the show’s very first cycle, which aired in summer 2002 — the smallest audience since August 14, 2002 and lowest adults 18-49 rating since July 3, 2002. It also matched all-time Wednesday lows in adults 18-34.

Meanwhile, ABC’s Modern Family (3.9/10) matched its fast national from last week to post its first 18-49 win over Idol. (Both series will likely go up a tenth in the finals, leaving Modern Family as No. 1 for the night.) Modern Family‘s lead-out, Suburgatory, (2.3/6) perked up, growing 15% from last week, but the network’s other Wednesday series were down. The Middle (2.1/6) was down 5% from its fast national last week, 9% from the final. The Neighbors (1.7/5) was down 11%, and Nashville (1.6/4) was down 11% from its last original two weeks ago to a series low.

CBS veteran Survivor (2.6/8) was up 8% from last week, building on that all-time low premiere to rank as the No. 3 program of the night in 18-49 and No. 1 on CBS, tied with Criminal Minds (2.6/7), which was flat with last week and tied its series low. CSI (1.8/5) gave back the gains from last week when it faced a Katie Couric special on ABC instead of Nashville, down 22%. NBC’s Whitney (1.2/4) and Guys With Kids (1.1/3) were both up a tenth from last week. Law & Order: SVU (1.6/4) and Chicago Fire (1.9/5) were even, with the latter posting its first win over original CSI to top the 10 PM hour in the demo.

The CW’s Arrow (1.0/3 in 18-49) inched up from last week, while Supernatural (0.9/2) was flat.