Fox topped Tuesday with a special American Idol, while Smash continued its precipitous slide.Idol's two-hour episode averaged 11.5 million viewers and a 3.4 in the adults 18-to-49 demographic. NCIS did, however, edge it out by a tenth in the 8 o'clock hour (20.3 million, 3.3 vs. 10.9 million, 3.2).The best "very special" episodesNCIS: Los Angeles (15.9 million, 2.8) and Golden Boy (9.3 million, 1.6), in its last Tuesday ... Read More > Other Links From TVGuide.com American IdolNCISNCIS: Los AngelesBody of ProofSmashHart of DixieCelebrity Wife SwapBetty White's Off Their RockersGo OnThe ... Read More