Fox proved that TV viewers' summer infatuation with dance may not be just a passing fancy.

The network's debut of "So You Think You Can Dance," an "American Idol"-like competition for hoofers, pulled in 10.3 million viewers last week, according to Nielsen Media Research.

While a relatively modest number, the rating made "Dance" the week's third most watched show, second among young viewers.

It comes on the heels of the summer's biggest success, ABC's now-concluded "Dancing With the Stars."

ABC's "Brat Camp," following troubled teens being shocked into shape, is another top 10 hit. But elsewhere, the shows that made ABC a surprise winner during the regular TV season are having the opposite effect this summer.

A "Desperate Housewives" rerun drew only 5.3 million viewers last week; a "Lost" repeat had 4.5 million. These serial-type shows traditionally do poorly in reruns, a truism that pushed ABC into fourth place last week.

Dramas where the stories are resolved in one episode do much better in repeats. That's why seven of Nielsen's top 15 shows last week were episodes of either the "CSI" or "Law & Order" franchises. Three other police-procedural dramas also made the top 15.

For the week, CBS averaged 7.3 million viewers, Fox 5.8 million, NBC 5.6 million, ABC 5.3 million, UPN 2.8 million and WB 1.7 million.

NBC's "Nightly News" won the evening news ratings race, averaging 8.2 million viewers to 8 million for ABC's "World News Tonight" and 6.6 million for "CBS Evening News."

The week's 10 most watched shows, in order, were: CBS's "CSI" and "Without a Trace"; Fox's "So You Think You Can Dance"; CBS's "Two and a Half Men"; NBC's "Law & Order: Criminal Intent"; CBS's "NCIS"; ABC's "Brat Camp"; NBC's "Law & Order: SVU" and "Law & Order"; and CBS's "CSI: Miami."