Ratings Report: Dancing with the Viewers

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Jason Mesnick's loss was Dancing with the Stars' gain.

The show, starring scored Bachelor contestant Melissa Rycroft, premiered to its largest debut audience ever last night: 22.5 million people tuned in.

Tony Dovolani and Melissa Rycroft Photo

The Rycroft effect: Pitted against DWTS, The Big Bang Theory (9.5 million viewers) and How I Met Your Mother (8.5 million) were solid, but down from last week. Chuck (5.7 million) didn't stand a chance. Only House (12.1 million) improved on its season average.

Heroes update: We know it's coming back for a fourth season... but is NBC sure? Last night marked the show's least-watched episode ever (6.6 million).

Fillion Takes Flight: Nathan Fillion's premiering Castle (11.6 million) didn't get wiped out by CSI: Miami (14.1 million). It's off to a good start.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.