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Shark Tank

Just don't say 'I don't know'

The sharks provide quite the threat to Marian Cruz, the inventor of the Turbobaster, for not being able to provide answers to their questions.

Tuesdays have more bite with back-to-back episodes of "Shark Tank" on CNBC every Tuesday night at 8 p.m. & 9 p.m. ET/PT.

Featured

Meet the Sharks

  • Mark is the highly successful entrepreneur and investor who founded HDNet, Broadcast.com and MicroSolutions.

  • Barbara Corcoran parlayed a $1,000 loan into a five-billion-dollar real estate business.

  • Lori Greiner started with one idea and turned it into a multi-million dollar international brand.