By James Hibberd
Updated March 02, 2011 at 06:03 PM EST
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Charlie Sheen’s interviews continue to draw big ratings. ABC’s chat with the actor on 20/20 evening gave the broadcaster its biggest 10 p.m., hour-long program rating in that Tuesday night slot in two years.

20/20 was watched by 9.3 million viewers and drew a 3.2 preliminary adults 18-49 rating, and was ranked as one of the night’s highest-rated shows, easily winning its hour.

Fox won the evening overall with American Idol (21.3 million, 7.5) shifting back to its former Tuesday perch. Idol also fueled an episode of Raising Hope (8.8 million, 3.4) to a season high.

CBS ranked second but took a mild hit with the increased competition from Idol: NCIS (19.2 million, 3.8) and NCIS: LA (15.6 million, 3.2) were down, while The Good Wife (11.3 million, 2.2) climbed 10 percent.

NBC’s The Biggest Loser (7 million, 2.4) hit a season-low, and was followed by Parenthood (5 million, 1.9).

Despite the success of 20/20, ABC finished in fourth place. Lucy Lawless guest starring on No Ordinary Family (4.3 million, 1.2) couldn’t help the show against juggernaut Idol. The superhero drama fell to an all-time low. V (5 million, 1.8) took a tiny dent.

The CW had One Tree Hill (1.6 million, 0.8) and Hellcats (1.5 million, 0.6).

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