Deal or No Deal is the name of several closely related television game shows, the first of which (launching the format) was produced by Dutch producer Endemol in 2001.

Deal or No Deal (also known as The Deal), is a game show which airs in Australia on the Seven Network and in New Zealand on Prime (though New Zealand launched its own version for TV3 in June 2007). It was the first international version of the gameshow, with the exception of the original Dutch version. It was the first of the versions to use the Deal or No Deal name.

Many changes have been made to Deal or No Deal since its debut in 2003. This included changing from a weekly format to a daily format; interactive features inviting home viewers to play along with "Double Deal Friday" and "Deals on Wheels"; and an addition of special features to the game (such as "Double or Nothing" and "Supercase"). The show has included many special episodes including several hour-long prime-time specials (such as the Psychics Special and the Unluckiest Players) and the successful Dancing with the Deals which occurs twice every year.

Deal or No Deal (commonly abbreviated as DoND) is the American version of the international game show Deal or No Deal. The show is hosted by Canadian actor-comedian Howie Mandel, and premiered on December 19, 2005 on NBC. The hour-long show typically airs at least twice a week during its run, and includes special longer or theme episodes, and is currently in its third season.

The game is primarily unchanged from the international format, and is based on a contestant selecting one briefcase out of 26, each containing a cash value from $0.01 to $1,000,000. Over the course of the game, the contestant eliminates the other cases in the game, periodically being presented with a "deal" from The Banker to take a cash amount to quit the game. Should the contestant refuse every deal, they win the value of the case selected at the start. Special variations of the game, including a "Million Dollar Mission" introduced in the third season, have also been used, as well as a tie-in with a viewer "Lucky Case Game".

The show has been a success for NBC, typically averaging from 10 to 16 million viewers each episode, and has lead to the creation of tie-in board, card, and video games, as well as plans for a syndicated series, played for smaller dollar amounts.

In this version of Deal or No Deal, the banker is female.

The Chinese Version Deal or No Deal is broadcasted in Hong Kong by TVB. It has been casting through its website and its magazine, and premiered on October 29, 2006 at 9:30pm. The first season of the show was hosted by Michael Hui, but was since then hosted by Alfred Cheung. It airs on the TVB Jade channel. The grand prize is HK$3,000,000 (about US$384,615), and the lowest is HK$1 (about US$0.13).

The name of Deal or No Deal in Chinese is , a 4-character phrase literally translated as 'Stake a thousand pieces of gold in one throw' (一 = one, 擲 = throw/cast, 千 = thousand, 金 = gold). Metaphorically, this can mean "Throw away money like dirt" or "Spend money like water". At the same time, 擲 has the same pronunciation of 擇, which means to choose, so there is another implication meaning of "to make a decision which related to thousands of money".

The set is identical to the US version, but the show uses the Miljoenenjacht theme tune and the sound effects are from Deal Ya No Deal.

Deal or No Deal, the Swedish version of the Deal or No Deal format, airs on TV4 and is produced by Meter Film & Television. The host is Martin Timell and the grand prize is 5,000,000 kronor (about US$680,000, €540,000, and £360,000), with the smallest being 50 öre (about US$0.07, €0.05, and £0.03). It premiered on March 25, 2006 and is broadcast as a Saturday prime time show. The national lottery draw is broadcast as a part of the programme.

As of June 2007, two seasons have been broadcast. The first season was broadcast in the spring of 2006, the second in the autumn.

Unique, the Swedish version has 24 cases. They open their cases on a 6-5-4-3-2-1-1 basis, slightly like most of the versions.

Deal or No Deal is a game show which was aired in Singapore on Channel 5. The show debuted on May 13 2007 with a million dollar deal show series from Sunday to Wednesday, after which the show aired every Wednesday, 8.30pm. The show is hosted by Adrian Pang. Auditions held before the show began attracted a few thousand people. Juliana June Rasuh, Dealing with pure dumb luck?, Today, 2007-04-30

The show's official website has an online game, to let viewers become familiar with the format of the game.

The second season of the show premiered on November 21 2007, and moved to two episodes in 1 week, every Wednesday and Thursday.

The Malaysian Chinese-language edition of Deal or No Deal (Chinese: , pinyin: yī zhí qiān jīn, Jyutping: yat1 zaak6 cin1 gam1) is being aired on ntv7 at 7pm every Monday and Tuesday beginning 12 March 2007. Being the first Mandarin language version of Deal or No Deal anywhere in the world, it is hosted by Goh Wee Ping. Prizes range from 10 sen to RM 100,000, hidden 2 cases each held by a "Revlon girl" (i.e. the girls' appearance is sponsored by Revlon).

The second season will be premier on May 8, 2008 for 52 episodes.

:Information on specific episodes may be found at the or_No_Deal" target="_blank">TVIV wiki article on Deal or No Deal

_Deal or No Deal in New Zealand is the New Zealand version of the international game show format. After Prime TV's success airing the Australian version of Deal or No Deal in New Zealand, a New Zealand produced version launched on TV3 on June 6, 2007. The show is hosted by radio comedian Jeremy Corbett and each show airs for one hour, on a Wednesday night, from 7:30pm to 8:30pm. The 26 cases range in value from 10¢ to $200,000.

Using a combination of random selection and multiple choice questions, 26 contestants are selected for the podium, from which only one will progress to the Deal Round. In this round, the contestant selects one briefcase from 26, and the amount of money in their chosen briefcase is revealed through a process of elimination, by first opening up the other 25 briefcases. As each briefcase is selected, the podium player with that briefcase guesses what amount is in it, winning money if their guess is correct. From time to time, the bank will make offers to buy the contestant's briefcase. When each offer comes in, the contestant has to make one decision - Deal or No Deal. Written by Allister Coots

The identity of the mysterious "Banker" is never revealed - he is credited as playing "Himself" in the closing credits. One theory is that it is the show's producer, Glenn Hugill.

On the episode broadcast on 1 April 2006, the credit for The Banker was "Richard Oldman". This is probably an April Fool for a "rich old man".

The United States' version of "Deal or No Deal" was based on the Netherlands game show that had premiered in 2002. The main objective of the game was identical: Select a case containing a mystery cash amount, then - after being asked to narrow the field of cases by a certain number at various intervals - decide whether to take a cash buyout offered by an unseen "banker" ("Deal") or reject the offer and continue eliminating cases ("No Deal"), knowing he/she could win the grand prize of $1 million ... or far less. Each new game begins with 26 cases, each randomly distributed and held by a sexy model. The contestant chooses one case, which is placed at his/her contestant's podium. The cash amount inside could be as little as 1 cent ($.01) or as much as $1 million. The player then is asked to eliminate six of the remaining cases, calling out the corresponding numbers one at a time. After each number is called, that case is opened, revealing one of the 26 cash prizes; that prize is then eliminated from play. After the six cases are opened, host Mandell receives a call from The Banker, who makes an offer to buy back the player's case. The offer is based on the cash amounts still in play; although this initial offer is fairly small, it is usually higher if more of the small amounts - usually, those under $10,000 - were taken out of play. If the player chooses to accept the offer ("Deal"), he/she presses a button at his/her podium to confirm the decision. At that point, his/her game ends, the amount inside the case, and the cases remaining in play are revealed. However, should the contestant refuse The Banker's offer ("No Deal," which always happened at least on the early deals), he/she is then directed to eliminate five cases from play, after which another deal is offered, which - depending on what prizes are eliminated during this round - may be higher or lower than the previous offer. Subsequent rounds have the contestant eliminating four, three and two cases from the remaining field, with Banker deals after each elimination round; thereafter, the contestant withdraws one case each time. During these latter rounds, the contestant often received advice from a group of supporters (his/her family, friends and others) on whether to accept or decline the offer. This process continues until two cases remain - the player's and the one yet to be eliminated - and one final deal is made. Should the contestant refuse the final offer, one of two things may happen. If the game's outcome is rather anti-climatic (i.e., only very small amounts remain), the contestant's case is opened and he/she wins the cash amount inside. However, if at least one of the large amounts remains in play, he/she is offered a chance to swap cases and then given another final deal; after the player's decision, the player's case is opened and he/she wins accordingly. "Deal or No Deal" premiered on NBC in December 2005 with a week's worth of shows to promising ratings; a second set of five episodes in Februrary and March 2006 did just as well, earning a twice-weekly spot on the NBC prime-time schedule. During each game, home viewers are invited to play a "Lucky Case" game, in which they enter - via their cellular telephone keypad - which of six cases they believe contains the $10,000 grand prize. Those who select the right case are entered into a random drawing, with four winners selected (one from each time zone) to win the $10,000 prize. Written by Brian Rathjen