Extra helpings of two hot shows — “American Idol” and “24” — helped Fox cruise to another primetime ratings victory last week.

The music competition and drama thriller are both up about 10% vs. their ratings a year ago, so it figured that their five hours combined would be enough for Fox, which swept the March 6-12 frame in key demos.

And thanks to these hot skeins as well as medical mystery “House,” Fox won Monday, Tuesday, Wednesday and Thursday among adults 18-49 in the same week — a first for the network with series programming.

The three editions of “American Idol,” including the final scheduled Thursday results show edition, accounted for the top three spots in the program rankings in both 18-49 and total viewers, led by Wednesday’s seg (12.4 rating/32 share in 18-49, 30.38 million viewers overall).

Overall, according to Nielsen, Fox’s 5.6 rating/15 share in adults 18-49 towered over CBS (3.8/10), ABC (3.4/9) and NBC (2.8/7). Spanish-language web Univision placed fifth for the week (1.8/5) and was hot on the trail of NBC in adults 18-34 (2.0/6 vs. 2.2/7).

Fox also led in total viewers, averaging 13.5 million compared with 12.6 million for runner-up CBS.

Top scripted shows of the week for Fox were Tuesday’s “House” (8.4/20 in 18-49, 20.56m), which logged its second best scores to date, and Monday’s “24” (5.8/13, 13.98m for its second of two hours). Net also was solid on Sunday with “The Simpsons” (4.6/11, 9.71m) and “Family Guy” (4.1/9, 8.06m).

Not looking as good Sunday was the 9:30 p.m. preem of slacker comedy “Free Ride” (2.9/6, 5.67m), which Fox promos had been touting as “the No. 1 new comedy of the year” after a single, post-“American Idol” preview seg two weeks ago. It ran third among the broadcasters in 18-49, holding 71% of its “Family Guy” lead-in.

Highlight of the week for CBS came Tuesday night, when “The Unit” (5.1/12 in 18-49, 18.50m) delivered the second best drama bow of the season in 18-49 (Daily Variety, March 8).

Other Eye skeins winning their timeslots included the week’s No. 1 comedy, Monday’s “Two and a Half Men” (5.7/13 in 18-49, 17.06m), and crime dramas “CSI” (8.8/22, 27.16m), “Without a Trace” (6.5/18, 20.28m) and “CSI: Miami” (6.1/15, 18.61m).

ABC shone brightest as usual on Sunday, where despite tougher cable competish, the combo of “Extreme Makeover: Home Edition” (6.8/17, 16.80m), “Desperate Housewives” (8.8/19, 22.20m) and “Grey’s Anatomy” (9.9/23, 22.51m) each dominated. “Grey’s” was the week’s No. 1 scripted show in 18-49.

Alphabet also got off to a fairly good start with Tuesday comedy “Sons & Daughters” (Daily Variety, March 9) but was held back by weak showings from rookie dramas “Invasion” on Wednesday (2.5/7, 6.74m) and “In Justice” on Friday (1.6/5, 5.09m).

NBC, with its Thursday lineup in repeat, was paced by Monday’s “Deal or No Deal” (4.9/12 in 18-49, 14.66m) and also held well opposite “The Sopranos” on Sunday with “Law & Order: Criminal Intent” (3.6/8 in 18-49, 12.27m), which matched its best score in four months.

Friday’s “Conviction” faded in its second try (2.5/7, 7.74m), coming in 17% below what “Law & Order: Trial by Jury” logged in its second week a year ago in the same 10 o’clock hour.

After a late-winter slump without its top series, UPN stormed past the WB for the week in adults 18-34 (1.6/5 to 1.0/3) behind the two-hour season preem of “America’s Next Top Model” (2.5/6 in 18-49, 5.26m), which set series highs for a premiere.

On the cable side, Wednesday saw a strong bow for FX’s “Black. White.” and a potent finale to the season for Bravo’s “Project Runway” (Daily Variety, March 10). Still, USA, boosted by “WWE Raw” and “Monk,” led all nets for the frame in 18-49, 25-54 and total viewers.