TV's singing competitions: How would they fare on the charts?: Another TV season, another passel of singing shows. And why not? The big ones tend to dominate the ratings season after season. But their star power may be on the wane. If these shows were musicians, none of them would be on the top of the charts. Will the new season -- and new challengers -- perk up the genre? Or are we stuck with the same old acts with shiny new costumes?
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