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Shark Tank is an American reality TV show that began its original run in August 2009 and was renewed for a fourth season in May 2012. It is the U.S. version of the popular worldwide television show Dragons' Den, which originated in Japan and now has versions in dozens of other countries, including Canada, Australia, the United Kingdom and Sweden.

In all countries, the show focuses on a series of contestants who believe they have come up with a profitable product or business idea but need money to fund it. They can pitch their idea on the show to a group of entrepreneurial businesspeople, known as the "sharks" in the U.S. version. The sharks then question the contestant about their product to determine if it would be a good product to invest their money in. The contestants have a set amount of money they wish to raise for their product, and if they cannot raise that much, they get nothing. However, if they can persuade the sharks to provide the money they need, the invested sharks then get a percentage of the company's stock in return.

Four sharks have been on all three seasons of Shark Tank, with a few others being in only one or two seasons. The main four are IT security firm owner Robert Herjavec, real estate millionaire Barbara Corcoran, former president of The Learning Company Kevin O'Leary, and FUBU founder Daymond John. Currently the shark panel also includes Mark Cuban, billionaire owner of the Dallas Mavericks, who replaced business executive Kevin Harrington on the show. In season two, comedian Jeff Foxworthy was also one of the sharks.

Friday at 9:00 PM et/pt on ABC
8 Seasons, 175 Episodes
August 9, 2009
Cast: Kevin O'Leary, Phil Crowley, Robert Herjavec, Mark Cuban
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Shark Tank Full Episode Guide

  • Two entrepreneurs from Placentia, California, pitch their solution to embarrassing underarm sweat marks and stains; brothers and best friends from Walnut Creek, California, believe their belt buckle that doubles as a wallet is the most convenient way to carry your essentials; U.S. Army veterans from Chicago, Illinois, hope to empower farmers in a war-torn country by helping them cultivate and harvest saffron; and a former executive chef from Colorado Springs, Colorado, with an unlikely story, thinks his multi-purpose mixing bowl will become the next go-to kitchen gadget. Also, a follow-up with Robin "Wombi" Rose and John Wise from Cambridge, Massachusetts, and their 3D paper pop-up greeting cards, LovePop, that Kevin O'Leary invested in during season 7.

  • The Sharks are pitched a fitness apparel line that caters to women who love building their booty, a no-spill, portable and stem-less wine glass business and a rescue signal that could make the difference between life and death.

  • The Sharks are pitched a smartphone app that can improve personal security, a safer take on the bicycle and an app that helps shoppers and diners earn free parking in exchange for their business.

  • The Sharks are pitched a unique wine for cats, a portable shelter that ensures you're covered wherever you go and a maintenance-free and fun way to make anyone into a gardening guru.

  • The Sharks are pitched tasty, artificial-free nutrients, training and educational courses for would-be drone pilots, and elephant-themed apparel.

  • The Sharks are pitched a subscription service that teaches kids how to code, an app where children can use an animal plush toy to send and receive voice mails, and a method for growing indoor plants with software that automates water, light and plant food.

  • A firefighter and his wife hope the Sharks make a smoking hot deal for their durable bags made from gear that protects on the front lines of firefighting; a vibrating mat that can calm a crying baby in seconds was born from the experiences of a pediatric nurse from Boston, Massachusetts; a former Army intelligence officer and his business partner from Portsmouth, Ohio, have made it their mission to heal America's wounds with an ointment made from essential oils; and a Peace Corps volunteer from Peninsula, Ohio, was inspired by his time in the Amazon rain forest to produce a natural fruit snack made with acai. Also, a follow-up with R. Riveter, which provides jobs to military spouses that Mark Cuban invested in during season 7.

  • The Sharks are pitched a unique cooler that keeps multiple drinks separated inside one cold container, a stylish version of baby mats and a portable pressurized shower kit.

  • The Sharks are pitched tiny rental houses in the woods where people can unplug, recharge and rebalance their lives, snack chips made with cricket flour, and earplugs designed to filter out damaging levels of sound while protecting one's ears.

  • The Sharks are pitched an eco-friendly grease disposal method, an epic display of block toys and stylish nursing apparel for breastfeeding moms.

  • The Sharks are pitched a beautiful line of dolls of girls of color, cat companion products and a one-stop online shop for replacing men's outworn undergarments with affordable, high-quality new ones.

  • The Sharks are pitched an idea that Santa Claus replies to children's letters, complete with the North Pole postmark, a more functional winter glove, and personalized gift-giving.

  • The Sharks are pitched an electric skateboard business, human-quality pet food delivered fresh and a new generation of chewable coffee products made to optimize physical and mental function.

  • The Sharks are pitched a subscription service for puppy products, algae as a nutritional health supplement in America, design apparel for athletic builds, and a fishing line cutting tool.

  • The Sharks are pitched a way to make house hunting more convenient, a lemonade-stand business to help kids start their own businesse and a Made-in-America multi-functional cover for infant car seats.

  • The sharks are pitched a faux flower business, a way to test mercury levels in a single fish and a fashion brand geared toward the social media generation.

  • A biochemist has a way to get protection from the sun.

  • The sharks are pitched a stylish clothing line for little ones, delicious maple syrup products and a multi-use kitchen accessory.

  • The Sharks are pitched body sprays and lotions designed just for tween and teen girls, candy with a toy inside and a device that instantly turns a stick of butter into a spray.

  • The Sharks are pitched a new type of cookies by cookie legend Wally Amos, swimsuits for moms, and an invention that can save damaged tech devices.

  • The Sharks are pitched delicious heat-and-eat paleo meals, a high-tech device designed for catching fish hooks, and removable and reusable magnet stickers for hanging art.

  • The Sharks are pitched shoe slides, an app that can stop cyberbullying messages, an at-home beer dispenser that uses sound waves to make bottled and canned beer taste like draft, and heartwarming chicken soup. Also, an update on 2400 Expert, an SAT prep course in which Mark Cuban invested during season seven.

  • The Sharks are pitched chocolate treats that are perfect for women who want to satisfy cravings and a line of men's hair products.

  • The Sharks are pitched a product that will protect cars from extreme weather conditions, redesigned lacrosse equipment and a revamped video game version of the classic pinball machine for the home.

  • The Sharks are presented with hair products, healthy ready-to-eat frosting, and a lucrative interchangeable jewelry business.

  • Two Sharks fight over a solution to early education.

  • The Sharks are pitched a tasty way to improve the ice cream cone and an athletic twist on a kid stroller.

  • The Sharks are pitched a way to instantly check a pet's health, hand-held surfing boards and fashionable headphones geared towards female consumers. Ashton Kutcher joins the sharks.

  • The Sharks are pitched a cure for people who are addicted to their cell phones, the "coolest" toolbox ever made, and a wireless cuddly toy.

  • The Sharks are pitched a product that keeps beer cold longer, a new twist to the vending machine, pet-safe bug repellents and vegetable smoothies.

  • The Sharks are pitched a motion-activated toilet light, an alternative to traditional beer, and interactive pet toys.

  • The Sharks are pitched a product that can help relieve back pain, a cool way to reduce muscle inflammation and a high-tech bike lock.

  • Entrepreneurs sell the Sharks on U.S.-made products.

  • The Sharks are pitched an eco-friendly alternative to plastic bottles, a one-piece swimsuit that can keep you sun-safe and stylish, and an app with exercise playlists for the everyday person.

  • The Sharks are presented with a handbag made of upcycled military materials and piecework from other military spouses.

  • The Sharks are presented with an opportunity to help others increase their SAT scores, a new and improved sports bra, a high-tech backpack company and a cooling appliance for outdoor use. Plus, an update on Chapul Cricket Bars.

  • Guest judge Chris Sacca returns. The Sharks are pitched a device for babies and their parents, easing the pain of paying for college, a tech solution to parking tickets, and checking in with Rugged Races.

  • The Sharks are pitched a dual-use breath freshener, a functional placemat for children and a subscription service for ugly produce.

  • The Sharks are pitched equipment for people who want to run a crane or crush a car, a protein-filled pancake mix, and a way to keep ties looking on point.

  • The Sharks are pitched all-natural deodorant made from activated charcoal and other items appropriate for the holiday season.

  • New labor; grown-up version of a toy; beauty experts.

  • The Sharks consider investing in a new recreational sport, a fashion brand that offers wearers the opportunity to do good while looking good, and a traditional Brazilian staple.

  • The Sharks are pitched a product that is essential in every college dorm room and a formula for fixing shrunken sweaters.

  • The Sharks are pitched low-calorie ice cream and edible soaps and lotions.

  • The Sharks are pitched a tech education business and a specialized version of a popular home rental Web site. Self-made billionaire Chris Sacca joins the Sharks.

  • The Sharks are pitched a full-length mirror designed to build self-esteem.

  • The Sharks are pitched a potty-training device and baked-to-order sweets. Also: an update on an inspirational toy business invested in by Mark Cuban.

  • Talent manager Troy Carter - the founder, chairman and CEO of Atom Factory - appears as a guest Shark.

  • The Sharks are presented with hummus with a twist, eyelash extensions and edible cups. Plus, an update on the Red Dress Boutique from Season 6.

  • In the seventh season premiere, the Sharks are presented with a device to make feeding a baby easier, a new high-tech form of wearable transportation, and old-fashioned drinking vinegars.

Shark Tank News

Spanx Founder Might Join 'Shark Tank' Panel

The underwear entrepreneur is in talks to join the hit show.

Yidio Exclusive: 'Shark Tank' Billionaire Mark Cuban Says He's 'Moving Forward' With College Football Playoffs

When billionaire investor Mark Cuban said a few months ago that he was going to try to personally fund a college football playoff system, it sounded like the off-handed whim of a dude with a lot of cash to burn.

Cuban - who has participated on reality shows “Dancing with the Stars” and “Shark Tank” - owns the Dallas Mavericks, HDNET and the Landmark Theatres chain, and has been lately pursuing ownership of another sports franchise (and not having much luck).

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Shark Tank Video Clips & Extras

Season 8 Recap - Shark Tank Clip (02:51) Under the Weather Pitch - Shark Tank Clip (02:32)