"Deal or No Deal" was created and first aired in the Netherlands in 2000. The show has gone on to have adaptations in 80 different countries.
The U.S. version of the show debuted in 2005 on NBC, with a short hiatus in its final year. It was on the air on NBC until 2009, and an additional syndicated version was created in 2008, which continued until 2010. Howie Mandel was the host, and Joe Cipriano was its narrator throughout the show's entire run.
The show had participants initially choose one of 26 unmarked briefcases. The chosen briefcase contained an undisclosed amount of cash, ranging from 1 cent to $1 million. The values of the other cases would gradually be revealed to the player, and a figure called "The Banker" periodically made offers to buy the player out of the game based on how much potential cash was remaining.
A number of video game adaptations were made. Versions of the game are available for PCs, the Gameboy Advance, the Nintendo Wii and the Nintendo DS. A DVD game, arcade game and board game were also made. The game can also be played on Facebook, and there is a casino slot-machine adaptation as well.