The continued performance of ABC’s “Lost” and a strong premiere for reality show “Wife Swap” made the network competitive in the adults 18 to 49 demographic Wednesday, but a “CSI” repeat and the second episode of “CSI: New York” led CBS to a win in the demo and total viewers.

According to Nielsen Media Research preliminary fast nationals, “Lost” won the 8 p.m. (ET) hour in adults 18 to 49 with a 6.2/18, down 9 percent from last week’s 6.8/20. “Lost” brought in 16.33 million viewers, eclipsing CBS’s second-place “60 Minutes,” which garnered 9.92 million. “Lost” also won its time period in adults 18 to 34, teens and persons 12 to 34.

At 9 p.m. NBC’s “The Apprentice,” which moved from its Thursday time period to make room for the presidential debates, won in the demo with a 6.5/16. A repeat of CBS’s “CSI” won the time period in viewers with 16.40 million, edging out “The Apprentice’s” 14.13 million.

UPN premiered “Kevin Hill” at 9 p.m., garnering a 1.7/4 in adults 18 to 49, up 31 percent from last season’s premiere of “Jake 2.0.” In its first half-hour “Kevin Hill” won the time period in female teens, before “The Apprentice” edged out “Hill” in the 9:30 p.m. half-hour (2.8/9 versus 2.6/9). The WB’s second episode of “The Mountain” was down 25 percent in persons 12 to 34 from its premiere (2.0/6 versus 1.5/4) and down 24 percent in adults 18 to 49 (1.7/4 versus 1.3/3)

Fox’s Wednesday night comedy block won the night in teens, while the second week of “The Bernie Mac Show” at 9:30 p.m. was down 4 percent in adults 18 to 49 from last week (2.2/5 versus 2.3/6).

At 10 p.m., “CSI: New York” won the time period in adults 18 to 49 with a 6.9/18, beating out NBC’s 5.0/13. ABC’s “Wife Swap” earned a 4.9/13 in the demo, up 49 percent from the premiere of “Karen Sisco’s” 3.3/9 last season.

CBS won the night in adults 18 to 49 with a 4.9/13, followed closely by ABC (4.8/13), NBC (4.7/12), Fox (2.5/7), and UPN and The WB (both 1.9/5).

CBS also won the night in total viewers with 15.12 million, followed by ABC (11.89 million), NBC (11.60 million), Fox (5.63 million), The WB (4.23 million) and UPN (4.12 million).