Discovery Channel en Jaws, Teeth And Fins! Oh My! 'Shark Week' At 25 The Discovery Channel's annual "Shark Week" is one of the longest running events on cable television. After 25 years on the air, the weeklong series of programming dedicated solely to sharks has become an American icon. Comedian Stephen Colbert has called it his second favorite time of year.<p>Legend has it that it all began as an idea scribbled down on a napkin during a brainstorming meeting.<p>"It was over drinks, I hear," Brooke Runnette, executive producer of the series, tells <em>Talk of the Nation</em> guest host John Donvan. Thu, 16 Aug 2012 18:18:00 +0000 John Donvan 17971 at