National Bingo Game be over 18 as an underage player would, by law and under the rules of the game, be ineligible to participate or claim any prize. Until 1994, the National Bingo Game was the UK's largest computer controlled game until the National Lottery was launched. The lottery did have a negative impact on attendances at bingo clubs, although the game underwent several changes in attempt to boost prize money and compete with the lottery. Over £1 Billion has been paid out in prize money since the National Bingo Game was launched. In September 2007, bingo operators were allowed to introduce rollover
Prize Bingo a claim and only then will the computer check it and end the game (or reject it if the player has made a mistake). As well as being announced verbally, most prize bingo establishments feature a TV monitor or several that shows the last called number and how many numbers have been called. In addition to this, the consoles often have a small LED display that shows this information when a game is in progress or the number of remaining credits when there is no game in progress. Prize bingo establishments also usually feature a 'floorwalker', whose job it is