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'Shark Tank' Sneak Peek: Chris Sacca Takes a Bite Out of a Fellow Shark

Warning: This week’s Shark Tank contains some serious Shark-on-Shark violence — thanks to guest Shark (and billionaire venture capitalist) Chris Sacca. In the exclusive sneak peek above, Sacca asks the owners of education startup STEM Center USA what they’re looking for from the Sharks… and takes a not-so-subtle jab at fellow Shark and QVC queen Lori Greiner: “What I didn’t hear you say is: I need a spot on QVC; I need an infomercial; I need an end-cap at Bed Bath & Beyond.” Lori’s jaw drops as