For the first time in memory, a show airing on the same night as American Idol drew a bigger audience than Idol. Nielsen Research reported Friday that CBS's CSI: Crime Scene Investigation drew 19.93 million viewers during the 9:00 p.m. hour Thursday versus 19.57 million for Idol during the 8:00 p.m. hour. The special "results" edition of Idol was pushed to Thursday by the previous night's Idol Gives Back special. It had no difficulty overcoming competition from CBS's Survivor: Micronesia, the usual winner of the time slot, which averaged 11.68 million. CBS held on to first place at 10:00 p.m. as 14.61 million viewers tuned in to Without a Trace, nearly twice the 7.59 million who watched second-place E.R. on NBC. On Sunday night, the return of Desperate Housewives with new episodes was the night's big winner with a 10.1 rating and a 15 share, representing 16 million viewers.