You're not surprised, are you? The national Nielsen numbers show that Tuesday night's "American Idol" drew 32.6 million viewers on Fox, while Fox's coverage of the President's State of the Union address drew 10.5 million (it was apparently helped by the "Idol" lead-in). CBS and NBC were in the 8.5 million range and ABC had about 7 million. But what did most of the "Idol" viewers do when Bush came on? THR