Dancing With the Stars Dancing With the Stars

Dancing with the Stars averaged 20.97 million viewers over its two-hour finale, wrapping up its best ratings season ever. All told, it was up 15 percent in viewership and 18 percent in the demo over last year's season-ender (a record low for the franchise's finales).

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The Biggest Loser: Couples, on the other hand, put up its worst-ever numbers for a finale, posting a two-hour average of 8.08 million viewers and a 3.1 rating — down 21 percent from spring 2010.

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The first hour of prime time Tuesday saw American Idol pull in 19.96 million people, scoring a 6.2 demo rating — down 7 percent from last year's final performance show. However, it easily outpaced a reprise of Dancing's final performance program (10.29 million) and reruns of NCIS on CBS (10.24 million) and the CW's One Tree Hill (636,000).

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At 9/8c, the season finale of Glee went out singing to 12.01 million viewers (an 11 percent increase over last season's finale, which aired in June and notably did not follow Idol) and posted a 4.6 rating, while repeats of NCIS: Los Angeles on CBS and the CW's Hellcats grabbed 9.27 million and 710,000, respectively.

The Voice was quieter than ever, finishing second in the last hour of prime time, edging a rerun of NCIS on CBS, 8.55 million vs. 8.37 million, while Dancing was peaking at 22.02 million. Viewership for the Voice — which is slated to go head to head with Dancing next year — was down 13 percent.