The Vault is a British game show based on the original Israeli version called HaKassefet Hebrew: הַכַּסֶפֶת) that aired on ITV from 11 May 2002 to 24 August 2004.

Each contestant guessed a four-digit combination for the Vault, which held a cash jackpot that began at £100,000 after being won and increased by that amount for every game it went unclaimed.

The four whose guesses were farthest away became "brokers" (five in the third series), who could offer to sell correct answers, while all others played for a chance at the jackpot.

Each studio broker could press a button to illuminate a light on their podium and signal their readiness to make an offer.

They could turn to the brokers immediately, and could use any or all of their accumulated money over the course of the entire game (including this round) to purchase answers.

After the host read a question in the chosen category, the clock began to run again and the player had to answer with no help from the brokers.

If the player answered all 10 questions correctly before time ran out, the Vault opened and they won the entire jackpot in addition to their accumulated winnings from the first two rounds.