"American Idol":
Wednesday: 18.63 million
Thursday (start of Challenge Round in Vegas): 16.5 million- SEASON-LOW
"The Voice": 16.1 million (down from the season's first two episodes)
"Survivor: One World" (premiere): 10.7 million (barely up from the last season premiere)
"The Biggest Loser: No Excuses": 5.82 million- SEASON-LOW
"Wipeout": 5.13 million- ANOTHER SEASON-LOW
"Fear factor": 3.73 million- SEASON-LOW
"The Challenge: Battle of the Exes": 1.94 million (up slightly from last week's S-L)
"Top Shot" (fourth SP): 1.83 million (barely down from the last SP)
"Top Chef: Texas": 1.74 million (lowest viewership since the Christmas '11 episode)
"project RUNWAY: All-Stars": 1.5 million- SEASON-LOW
"World's Toughest Trucker" (premiere): .99 million
Source: The Futon Critic