Here's what's on TV tonight: "American Idol" (7 p.m., WVUE) continues as the top eight perform. Team NOLA Quentin Alexander and Joey Cook are still in the running, but will their performances last week be enough to keep them in the competition another week? The Wednesday theme is Kelly Clarkson songs.Meanwhile, Cook got engaged in the past few days and celebrated turning 24.Mike Holtzclaw @DailyPress.com has the rundown:The...