HOLLYWOOD — Unscripted programs continue to give the broadcast nets a primetime ratings jolt this summer, but it was repeats of familiar favorites — paced by CBS drama “CSI” — topping the rankings last week.

Each of the major nets was led by a repeat, as only one original skein, Fox’s contest show “American Juniors” on Tuesday, cracked the week’s top 10 list among adults 18-49, according to Nielsen data for the June 16-22 frame.

In addition to Thursday drama “CSI,” which was the week’s No. 1 program in adults 18-49 (5.0/15) and total viewers (14.32 million), repeat series that made the top 10 in 18-49 included two other CBS crime dramas — “CSI: Miami” (4.5/13) and “Without a Trace” (4.2/13) — and comedies like the net’s “King of Queens” (4.5/12), NBC’s “Friends” (4.4/15), Fox’s “The Simpsons” (4.4/14) and ABC’s “According to Jim” (3.9/12).

Other repeat programs commanding double-digit 18-49 shares included ABC’s “8 Simple Rules,” “My Wife and Kids” and “America’s Funniest Home Videos,” NBC’s “Will & Grace,” “Scrubs” and “Law & Order” trio and Fox’s “That ’70s Show” and “Cops.”

NBC stays on top

NBC remained on top for the fourth straight week in adults 18-49 (2.9/9), edging out Fox (2.8/9). ABC and CBS were tied for a distant third (2.2/7), even though the latter claimed the week’s top three programs in the demo.

NBC also was on top in adults 25-54, Fox in adults 18-34 and CBS in total viewers, with the Eye claiming the six most-watched programs overall.

Collectively, the six broadcast nets were again up vs. the same week a year ago in adults 18-49, with five of them showing gains and UPN flat.

Among original programs, Fox’s “American Juniors” (3.8/12 in A18-49, 9.75m) improved in its third try, opening up some distance on its unscripted rival, NBC’s “Dog Eat Dog” (season low 2.6/9 in A18-49).

Also delivering solid numbers were Tuesday contest show “Last Comic Standing” (3.5/10 in 18-49 on Tuesday), the Monday tandem of “For Love or Money” and “Meet My Folks” (3.6/10 each) and unscripted courtroom drama “Crime and Punishment” (3.4/10) — all on NBC — and Fox’s new dating show “Paradise Hotel,” which bowed to a slot-winning 3.7/11 in adults 18-49 on Wednesday.

‘Boarding’ improves

The WB launched unscripted surfing skein “Boarding House: North Shore” to modest ratings on Wednesday (1.5/5 in adults 18-34), but a repeat of the first episode on Sunday delivered a stronger 1.8/6.

On the original scripted front, Fox’s “Keen Eddie” (2.1/6) is struggling along with firstrun CBS laffers “Baby Bob” on Friday (1.3/5) and “Charlie Lawrence” on Sunday (1.1/3). Scripted series performing weakly in repeats include CBS’ “The Guardian” and “The District” and ABC’s “Alias” — each of which settled for less than a 5 share in adults 18-49.

Unscripted shows trending downward included NBC’s “Fame” (2.6/8) and CBS’ “Amazing Race 4” (2.8/10). Even a show like “Fame,” though, which isn’t performing that well at this point, is an improvement over the rating its net was getting in the slot a year ago with repeats of dramas.

Cable preems big

It was a big week for cable premieres, as USA drama “Monk” bowed to its best numbers yet on the network (1.7/6 in A18-49, 5.43m), placing second to NBC’s “Law & Order: SVU” in some categories Friday at 10 and ranking as the week’s most-watched program on basic cable.

For the week, TNT led ad-supported cablers in both adults 18-49 (0.8 rating, edging out USA’s 0.7) and total viewers (2.37 million).

Also, HBO’s “Sex and the City” dominated its Sunday 9 p.m. slot in adults 18-49 (4.1/12) and key femme demos with its season premiere, which averaged 7.3 million viewers overall.