Bingo card cards to overcome the difficulty with randomization. There are two types of Bingo cards. One is a 5x5 grid meant for 75-ball Bingo, which is largely played in the U.S. The other uses a 9x3 grid for U.K. style "Housie" or 90-ball Bingo. Players use cards that feature five columns of five squares each, with every square containing a number (except the middle square, which is designated a "FREE" space). The columns are labeled "B" (numbers 1–15), "I" (numbers 16–30), "N" (numbers 31–45), "G" (numbers 46–60), and "O" (numbers 61–75). A popular Bingo myth claims that U.S. Bingo innovator Edwin
National Bingo Night (U.S. game show) prize the studio contestant failed to win on at least one occasion). In the event that the in-studio contestant completes their game and an audience member gets a bingo, only the audience member wins. All games were winner-take-all. Non-winning contestants received nothing. The format was later retooled as "Bingo America" and aired new episodes on GSN from March 31, 2008 to January 2, 2009. In the new format, two contestants competed on each show for a top prize of $100,000. The new version also included an at-home element in which viewers had the chance to win prizes. National Bingo Night