David Blaine's Underwater Stunt on Oprah Winfrey's show

Magician David Blaine on Wednesday, 30 April, will try to break the world record for breath- holding during a live broadcast of "The Oprah Winfrey Show," less than two years after going into convulsions during a similar attempt.

David Blaine plans to breathe pure oxygen for about 20 minutes before entering a water-filled sphere.
The time he has to beat is 16 minutes and 32 seconds, a record set Feb. 10 by Switzerland's Peter Colat, according to Guinness World Records.

David Blaine once spent 44 days suspended from a glass box by the River Thames in London. He was also buried alive for a week in a see-through coffin in New York.