Even TV has jumped on the bandwagon in recent years with the success of Say Yes to the Dress, Bridezillas, and Shedding for the Wedding.

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Among the programs added are Discovery Channel's Dirty Jobs, TLC's Say Yes To The Dress and Animal Planet's Whale Wars, as well as thousands of TV episodes from MTV, Comedy Central, Nickelodeon, TV Land, Spike, VH1, BET, CMT and Logo.

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To be fair, most of the time we're just trying to be nice. (When your girlfriend asks if she looks good in her new dress, most guys--if they know what's good for them--say yes.) Indeed, according to DePaulo's study, such "false-positive" fibs are delivered 10 to 20 times more often than spurious denials of culpability.

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