• by Wayne Friedman , March 23, 2011

In a switch of their rerun modes, it was CBS' turn to rule the roost on Tuesday night over Fox.

CBS' "NCIS" helped power the network to an overall night win. The 8 p.m. show pulled in a Nielsen preliminary 3.8 rating/12 share among 18-49 viewers -- the best-rated show of the night. "NCIS: Los Angeles" at 9 p.m. grabbed a 3.2/9.

CBS had a clear path because Fox's "Glee" was in repeat mode, grabbing a 2.0/6. This was the exact opposite of a week ago, when the two "NCIS" shows were in repeats, and "Glee" was running an original.

NBC also had a better time of it this week, with its two hours of "The Biggest Loser: Couples" earning a 2.7/8 and 3.3/9 in the 8 p.m. and 9 p.m. hours, respectively. "Loser" won the 9 p.m. period. This improved last week's 2.4 and 3.0 ratings, respectively, in the 8 p.m. and 9 p.m. hours.

CBS' "The Good Wife" took top honors at 10 p.m. with a 2.1/6, helped by the fact that its closest competitor, NBC's "Parenthood," was in a repeat and earned a 1.1/3.

ABC had an original "No Ordinary Family" at 8 p.m. earning an ordinary 1.5/5, followed by a two-hour special called "Best in Film: The Greatest Movies of Our Time," which took a 1.8/5.

In addition to a "Glee" repeat, Fox had a rerun for "Raising Hope." "Traffic Light" at 9:30 p.m. was an original episode, getting to a 1.1/3 -- down half a rating point from a 1.6 rating the week before.

CW was in repeats with "One Tree Hill" and "Hellcats" each grabbing a 0.3/1 among 18-49 audiences.

For the night, CBS was at a 3.0/9; NBC took a 2.4/7; ABC earned a 1.7/5; Fox scored a 1.6/5; Univision earned a 1.6/5; and CW finished with a 0.3/1.