CBS’s lineup of originals boosted the network to an easy victory last night, though neither the returning “CSI” nor “Without a Trace” were up over their season average.

CBS averaged a 4.6 adults 18-49 rating and 13 share, according to Nielsen overnights, well ahead of second-place Fox at 2.9/8 and third-place NBC at 2.6/7. “CSI” and “Without a Trace” both aired their first original episodes since January.

“CSI” averaged a 5.8 rating at 9 p.m., topping its last pre-strike original episode but off 8 percent from its season-to-date average of 6.3. At 10 p.m., “Trace” pulled a 4.1, even to its season-to-date average and up slightly over its most recent original, too.

NBC’s “My Name is Earl” also aired its first post-strike original, to so-so ratings. The hour-long episode finished second in its 8 p.m. timeslot behind CBS’s “Survivor: Micronesia,” averaging a 3.1 rating. That was up slightly from a 2.9 for its final original episode in January, but below its season-to-date 3.3 average.

Meanwhile, for the night, Univision placed fourth at 1.7/5, ABC fifth at 1.5/4 and CW sixth at 0.8/2.
 
CBS led each hour of the night, starting with a season-low 3.9 at 8 p.m. for “Survivor,” followed by NBC with a 3.1 for “Earl.” Fox was third with a 2.8 for “Are You Smarter than a 5th Grader?,” Univision fourth with a 2.1 for “Al Diablo con los Guapos,” ABC fifth with a 1.5 for an hour of “Miss Guided” and CW sixth with a 0.9 for a repeat of “Smallville.”
 
At 9 p.m. CBS was first with a 5.8 for “CSI,” while Fox moved up to second with a 3.0 for another hour of “Smarter.” NBC was third with a 2.4 for repeats of “The Office,” Univision fourth with a 1.8 for “Pasion,” ABC fifth with a 1.3 for a “Lost” rerun and CW sixth with a 0.7 for a repeat of “Supernatural.”
 
CBS led again at 10 p.m. with a 4.1 for “Without a Trace,” with NBC second with a 2.3 for more “Office.” ABC was third with a 1.6 for “Eli Stone” and Univision fourth with a 1.2 for “Amas de Casa Desperadas.”
 
Among households, CBS also led the night with a 9.9 average overnight rating and a 16 share. Fox was second at 6.1/10, NBC third at 3.7/6, ABC fourth at 3.2/5, Univision fifth at 2.0/3 and CW sixth at 1.4/2.